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config.lib
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config.lib
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log() {
if [ $1 = "1" ]; then
shift
echo "$@"
else
shift
fi
echo "$@" >> $config_log
}
set_default() {
ignore_extra_parameters="0"
# We set all kinds of defaults for params. Later on the user can override
# most of them; but if they don't, this default is used.
build=""
host=""
cc_build=""
cc_host=""
as_host=""
strip=""
lipo=""
awk="awk"
os="DETECT"
cpu_type="DETECT"
config_log="config.log"
prefix_dir="/usr/local"
binary_dir="games"
doc_dir="share/doc/opendune"
data_dir="share/games/opendune"
icon_dir="share/icons/hicolor/32x32/apps"
install_dir="/"
binary_name="opendune"
enable_debug="0"
enable_profiling="0"
enable_lto="0"
enable_static="1"
enable_assert="1"
enable_strip="0"
enable_universal="0"
with_osx_sysroot="1"
with_sdl="1"
with_sdlimage="1"
with_sdl2="1"
with_asound="1"
with_pulse="1"
enable_builtin_depend="1"
with_makedepend="0"
with_sort="1"
with_distcc="1"
with_ccache="1"
save_params_array="
build
host
cc_build
cc_host
strip
lipo
awk
os
cpu_type
config_log
prefix_dir
binary_dir
data_dir
icon_dir
install_dir
binary_name
enable_debug
enable_profiling
enable_lto
enable_static
enable_assert
enable_strip
enable_universal
with_osx_sysroot
with_sdl
with_sdlimage
with_sdl2
with_asound
with_pulse
enable_builtin_depend
with_makedepend
with_sort
with_distcc
with_ccache
CC CFLAGS LDFLAGS CFLAGS_BUILD LDFLAGS_BUILD"
}
detect_params() {
# Walk over all params from the user and override any default settings if
# needed. This also handles any invalid option.
for p in "$@"; do
if [ -n "$prev_p" ]; then
eval "$prev_p=\$p"
prev_p=
continue
fi
optarg=`expr "x$p" : 'x[^=]*=\(.*\)'`
case "$p" in
--help | -h | -\?) showhelp; exit 0;;
--config-log) prev_p="config_log";;
--config-log=*) config_log="$optarg";;
--build) prev_p="build";;
--build=*) build="$optarg";;
--host) prev_p="host";;
--host=*) host="$optarg";;
--os) prev_p="os";;
--os=*) os="$optarg";;
--cpu-type) prev_p="cpu_type";;
--cpu-type=*) cpu_type="$optarg";;
--cc-build) prev_p="cc_build";;
--cc-build=*) cc_build="$optarg";;
--cc-host) prev_p="cc_host";;
--cc-host=*) cc_host="$optarg";;
--awk) prev_p="awk";;
--awk=*) awk="$optarg";;
--strip) prev_p="strip";;
--strip=*) strip="$optarg";;
--lipo) prev_p="lipo";;
--lipo=*) lipo="$optarg";;
# Alias --prefix with --prefix-dir, for compatibility with GNU autotools
--prefix-dir | --prefix) prev_p="prefix_dir";;
--prefix-dir=* | --prefix=*) prefix_dir="$optarg";;
--binary-dir) prev_p="binary_dir";;
--binary-dir=*) binary_dir="$optarg";;
--data-dir) prev_p="data_dir";;
--data-dir=*) data_dir="$optarg";;
--icon-dir) prev_p="icon_dir";;
--icon-dir=*) icon_dir="$optarg";;
--binary-name) prev_p="binary_name";;
--binary-name=*) binary_name="$optarg";;
--install-dir) prev_p="install_dir";;
--install-dir=*) install_dir="$optarg";;
--enable-debug) enable_debug="1";;
--enable-debug=*) enable_debug="$optarg";;
--enable-profiling) enable_profiling="1";;
--enable-profiling=*) enable_profiling="$optarg";;
--enable-lto) enable_lto="1";;
--enable-lto=*) enable_lto="$optarg";;
--enable-ipo) enable_lto="1";;
--enable-ipo=*) enable_lto="$optarg";;
--disable-static) enable_static="0";;
--enable-static) enable_static="2";;
--enable-static=*) enable_static="$optarg";;
--disable-assert) enable_assert="0";;
--enable-assert) enable_assert="2";;
--enable-assert=*) enable_assert="$optarg";;
--disable-strip) enable_strip="0";;
--enable-strip) enable_strip="2";;
--enable-strip=*) enable_strip="$optarg";;
--disable-universal) enable_universal="0";;
--enable-universal) enable_universal="i386 ppc x86_64";;
--enable-universal=*) enable_universal="$optarg";;
--with-sdl) with_sdl="2";;
--without-sdl) with_sdl="0";;
--with-sdl=*) with_sdl="$optarg";;
--with-sdl2) with_sdl2="2";;
--without-sdl2) with_sdl2="0";;
--with-sdl2=*) with_sdl2="$optarg";;
--with-asound) with_asound="2";;
--without-asound) with_asound="0";;
--with-asound=*) with_asound="$optarg";;
--with-alsa) with_asound="2";;
--without-alsa) with_asound="0";;
--with-alsa=*) with_asound="$optarg";;
--with-pulse) with_pulse="2";;
--without-pulse) with_pulse="0";;
--with-pulse=*) with_pulse="$optarg";;
--disable-builtin-depend) enable_builtin_depend="0";;
--enable-builtin-depend) enable_builtin_depend="2";;
--enable-builtin-depend=*) enable_builtin_depend="$optarg";;
--with-makedepend) with_makedepend="2";;
--without-makedepend) with_makedepend="0";;
--with-makedepend=*) with_makedepend="$optarg";;
--with-sort) with_sort="2";;
--without-sort) with_sort="0";;
--with-sort=*) with_sort="$optarg";;
--without-distcc) with_distcc="0";;
--with-distcc) with_distcc="2";;
--with-distcc=*) with_distcc="$optarg";;
--without-ccache) with_ccache="0";;
--with-ccache) with_ccache="2";;
--with-ccache=*) with_ccache="$optarg";;
--without-osx-sysroot) with_osx_sysroot="0";;
--with-osx-sysroot) with_osx_sysroot="2";;
--with-osx-sysroot=*) with_osx_sysroot="$optarg";;
CC=* | --CC=*) CC="$optarg";;
CFLAGS=* | --CFLAGS=*) CFLAGS="$optarg";;
LDFLAGS=* | --LDFLAGS=*) LDFLAGS="$optarg";;
CFLAGS_BUILD=* | --CFLAGS_BUILD=* | --CFLAGS-BUILD=*) CFLAGS_BUILD="$optarg";;
LDFLAGS_BUILD=* | --LDFLAGS_BUILD=* | --LDFLAGS-BUILD=*) LDFLAGS_BUILD="$optarg";;
--ignore-extra-parameters) ignore_extra_parameters="1";;
--* | -*)
if [ "$ignore_extra_parameters" = "0" ]; then
log 1 "Unknown option $p"
exit 1
else
log 1 "Unknown option $p ignored"
fi
;;
esac
done
if [ -n "$prev_p" ]; then
log 1 "configure: error: missing argument to --$prev_p"
exit 1
fi
# Clean the logfile
echo "" > $config_log
log 2 "Invocation: $0 $*"
}
save_params() {
# Here we save all params, so we can later on do an exact redo of this
# configuration, without having the user to re-input stuff
echo "Running configure with following options:" >> $config_log
echo "" >> $config_log
configure="$CONFIGURE_EXECUTABLE --ignore-extra-parameters"
for p in $save_params_array; do
eval "v=\"\$$p\""
p=`echo "$p" | sed 's@_@-@g;s@\n@@g;s@ @\\ @g'`
# Only save those params that aren't empty
configure="$configure --$p=\"$v\""
done
echo "$configure" >> $config_log
echo "$configure" > config.cache
echo "" >> $config_log
}
check_params() {
# Some params want to be in full uppercase, else they might not work as
# expected.. fix that here
os=`echo $os | tr '[a-z]' '[A-Z]'`
cpu_type=`echo $cpu_type | tr '[a-z]' '[A-Z]'`
# Check if all params have valid values
# OS only allows DETECT, UNIX, OSX, FREEBSD, OPENBSD, MORPHOS, BEOS, HAIKU, SUNOS, CYGWIN, MINGW, OS2, DOS, and WINCE, TOS
if [ -z "`echo $os | egrep '^(DETECT|UNIX|OSX|FREEBSD|OPENBSD|NETBSD|HPUX|MORPHOS|BEOS|HAIKU|SUNOS|CYGWIN|MINGW|OS2|DOS|WINCE|TOS)$'`" ]; then
log 1 "configure: error: invalid option --os=$os"
log 1 " Available options are: --os=[DETECT|UNIX|OSX|FREEBSD|OPENBSD|NETBSD|HPUX|MORPHOS|BEOS|HAIKU|SUNOS|CYGWIN|MINGW|OS2|DOS|WINCE|TOS]"
exit 1
fi
# cpu_type can be either 32 or 64
if [ -z "`echo $cpu_type | egrep '^(32|64|DETECT)$'`" ]; then
log 1 "configure: error: invalid option --cpu-type=$cpu_type"
log 1 " Available options are: --cpu-type[=DETECT|32|64]"
exit 1
fi
# enable_debug should be between 0 and 4
if [ -z "`echo $enable_debug | egrep '^[0123]$'`" ]; then
log 1 "configure: error: invalid option --enable-debug=$enable_debug"
log 1 " Available options are: --enable-debug[=0123]"
exit 1
fi
detect_awk
detect_os
check_build
check_host
# Check for universal builds; they only make sense for OSX, so fail if enabled for another OS
if [ "$enable_universal" = "0" ]; then
log 1 "checking universal build... no"
else
if [ "$os" != "OSX" ]; then
log 1 "configure: error: --enable-universal only works on OSX"
exit 1
fi
log 1 "checking universal build... yes, for: $enable_universal"
fi
# Already detected by check_build
log 1 "checking build cc... $cc_build"
log 1 "checking host cc... $cc_host"
if [ "$enable_strip" != "0" ]; then
check_strip
else
log 1 "checking strip... disabled"
fi
check_lipo
if [ "$enable_builtin_depend" != "0" ]; then
log 1 "checking builtin depend... yes"
makedepend="\$(SRC_OBJS_DIR)/\$(DEPEND)"
else
log 1 "checking builtin depend... no"
fi
check_makedepend
detect_cputype
if [ "$enable_static" = "1" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "MORPHOS" ] || [ "$os" = "DOS" ]; then
enable_static="2"
else
enable_static="0"
fi
fi
if [ "$enable_static" != "0" ]; then
log 1 "checking static... yes"
if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ] && [ "$os" != "OSX" ] && [ "$os" != "MORPHOS" ] && [ "$os" != "DOS" ]; then
log 1 "WARNING: static is only known to work on Windows, DOS, MacOSX and MorphOS"
log 1 "WARNING: use static at your own risk on this platform"
sleep 5
fi
else
log 1 "checking static... no"
fi
# Show what we configured
if [ "$enable_debug" = "0" ]; then
log 1 "using debug level... no"
if [ $enable_assert -eq 1 ]; then
enable_assert=0
log 1 "disabling asserts"
fi
elif [ "$enable_profiling" != "0" ]; then
log 1 "using debug level... profiling (debug level $enable_debug)"
else
log 1 "using debug level... level $enable_debug"
fi
if [ "$enable_lto" != "0" ]; then
# GCC 4.5 outputs '%{flto}', GCC 4.6 outputs '%{flto*}'
has_lto=`($cxx_build -dumpspecs 2>&1 | grep '\%{flto') || ($cxx_build -help ipo 2>&1 | grep '\-ipo')`
if [ -n "$has_lto" ]; then
log 1 "using link time optimization... yes"
else
enable_lto="0"
log 1 "using link time optimization... no"
log 1 "WARNING: you selected link time optimization but it is not found."
sleep 5
fi
else
log 1 "using link time optimization... no"
fi
if [ "$os" != "OSX" ] && [ "$with_osx_sysroot" != "0" ]; then
if [ "$with_osx_sysroot" = "1" ]; then
with_osx_sysroot="0"
log 1 "checking OSX sysroot... not OSX, skipping"
else
log 1 "configure: error: --with-osx-sysroot only works if OSX is the target"
exit 1
fi
fi
if [ "$with_osx_sysroot" != "0" ]; then
if [ "$enable_universal" = "0" ] && [ "$with_osx_sysroot" != "1" ] && [ "$with_osx_sysroot" != "2" ]; then
# Sysroot manually specified? Check for usability
log 1 "checking OSX sysroot... $with_osx_sysroot"
if ! check_osx_sdk "$with_osx_sysroot"; then
log 1 "Passed sysroot not found/not functional"
exit 1
fi
else
# If autodetect and no universal, use system default
if [ "$with_osx_sysroot" = "1" ] && [ "$enable_universal" = "0" ]; then
log 1 "checking OSX sysroot... no (use system default)"
else
log 1 "checking OSX sysroot... automatically"
detect_osx_sdk
fi
fi
if [ -n "$osx_sdk_path" ]; then
if [ "$enable_universal" != "0" ]; then
if [ -z "$osx_sdk_104_path" ]; then
log 1 "WARNING: Could not find a usable 10.4u SDK, the resulting"
log 1 "WARNING: binary will only run on OSX 10.5 or later"
osx_sdk_104_path="$osx_sdk_path"
fi
OSX_SYSROOT="-isysroot $osx_sdk_104_path"
OSX_LD_SYSROOT="-Wl,-syslibroot,$osx_sdk_104_path"
else
OSX_SYSROOT="-isysroot $osx_sdk_path"
OSX_LD_SYSROOT="-Wl,-syslibroot,$osx_sdk_path"
fi
fi
else
if [ "$os" = "OSX" ]; then
log 1 "checking OSX sysroot... no (use system default)"
fi
fi
if [ "$os" = "TOS" ]; then
with_sdl2="0"
with_sdl="0"
with_asound="0"
with_pulse="0"
fi
detect_sdl2
detect_sdl
detect_asound
detect_pulseaudio
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "WINCE" ]; then
log 1 "checking GDI video driver... found"
else
log 1 "checking GDI video driver... not Windows, skipping"
fi
if [ "$enable_assert" != "0" ]; then
log 1 "checking assert... enabled"
else
log 1 "checking assert... disabled"
fi
detect_sort
if [ "$enable_debug" = "0" ] && [ "$enable_profiling" = "0" ] && [ "$enable_strip" != "0" ]; then
if [ "$os" = "MORPHOS" ]; then
strip_arg="--strip-all --strip-unneeded --remove-section .comment"
elif [ "$os" = "OSX" ]; then
strip_arg=""
elif [ "$os" = "OS2" ]; then
strip_arg=""
# OS2 uses strip via gcc, because it needs to be feed to emxbind
LDFLAGS="$LDFLAGS -s"
elif [ "$os" = "SUNOS" ]; then
# The GNU strip does know -s, the non-GNU doesn't
# So try to detect it (in a bit of an ugly way)
strip_arg="`$strip -s strip.test 2>/dev/null && echo \"-s\"`"
else
strip_arg="-s"
fi
log 1 "checking stripping... $strip $strip_arg"
else
strip=""
log 1 "checking stripping... skipped"
fi
if [ "$with_distcc" = "0" ]; then
log 1 "checking distcc... no"
elif [ "$with_distcc" = "1" ]; then
with_distcc="0"
log 1 "checking distcc... no (only used when forced)"
elif [ "$with_distcc" = "2" ]; then
distcc="distcc"
else
distcc="$with_distcc"
fi
if [ "$with_distcc" != "0" ]; then
res="`$distcc --version 2>/dev/null | head -n 1 | cut -b 1-6`"
if [ "$res" != "distcc" ]; then
distcc=""
log 1 "checking distcc... no"
if [ "$with_distcc" = "2" ]; then
log 1 "configure: error: no distcc detected, but was forced to be used"
exit 1
fi
if [ "$with_distcc" != "1" ]; then
log 1 "configure: error: '$with_distcc' doesn't seem a distcc to me"
exit 1
fi
fi
log 1 "checking distcc... $distcc"
fi
if [ "$with_ccache" = "0" ]; then
log 1 "checking ccache... no"
elif [ "$with_ccache" = "1" ]; then
with_ccache="0"
log 1 "checking ccache... no (only used when forced)"
elif [ "$with_ccache" = "2" ]; then
ccache="ccache"
else
ccache="$with_ccache"
fi
if [ "$with_ccache" != "0" ]; then
res="`$ccache --version 2>/dev/null | head -n 1 | cut -b 1-6`"
if [ "$res" != "ccache" ]; then
ccache=""
log 1 "checking ccache... no"
if [ "$with_ccache" = "2" ]; then
log 1 "configure: error: no ccache detected, but was forced to be used"
exit 1
fi
if [ "$with_ccache" != "1" ]; then
log 1 "configure: error: '$with_ccache' doesn't seem a ccache to me"
exit 1
fi
fi
log 1 "checking ccache... $ccache"
fi
if [ "$os" = "OSX" ] ; then
OSXAPP="OpenDUNE.app"
else
OSXAPP=""
fi
if [ -d "$ROOT_DIR/.svn" ] && [ -n "`svn help 2>/dev/null`" ]; then
log 1 "checking revision... svn detection"
elif [ -d "$ROOT_DIR/.git" ] && [ -n "`git help 2>/dev/null`" ]; then
log 1 "checking revision... git detection"
elif [ -d "$ROOT_DIR/.hg" ] && [ -n "`hg help 2>/dev/null`" ]; then
log 1 "checking revision... hg detection"
elif [ -f "$ROOT_DIR/.ottdrev" ]; then
log 1 "checking revision... source tarball"
else
log 1 "checking revision... no detection"
log 1 "WARNING: there is no means to determine the version."
log 1 "WARNING: please use a subversion, mercurial, or git checkout of OpenDUNE."
log 1 "WARNING: USE WITH CAUTION!"
sleep 5
fi
if [ -n "$install_dir" ]
then
log 1 "installation directory... $install_dir"
else
log 1 "installation directory... none"
fi
}
make_compiler_cflags() {
# Params:
# $1 - compiler
# $2 - name of the cflags variable
# $4 - name of the ldflags variable
# $5 - name of the features variable
eval eval "flags=\\\$$2"
eval eval "ldflags=\\\$$3"
eval eval "features=\\\$$4"
if [ `basename $1 | cut -c 1-3` = "icc" ]; then
# Enable some things only for certain ICC versions
cc_version=`$1 -dumpversion | cut -c 1-4 | sed s@\\\.@@g`
flags="$flags -rdynamic"
ldflags="$ldflags -rdynamic"
if [ -z "$first_time_icc_check" ]; then
first_time_icc_check=no
if [ $cc_version -lt 90 ]; then
log 1 "WARNING: you seem to be using a very old version of ICC"
log 1 "WARNING: OpenDUNE hasn't been tested with this version"
sleep 5
elif [ $cc_version -lt 120 ]; then
log 1 "WARNING: you seem to be using an unsupported ICC version"
log 1 "WARNING: ICC older than 12.0 is known to fail to compile OpenDUNE"
sleep 5
fi
fi
flags="$flags -Wall"
# remark #111: statement is unreachable
flags="$flags -wd111"
# remark #181: argument is incompatible with corresponding format string conversion
# ICC is very picky about signedness of operands, warnings provided by GCC are enough
flags="$flags -wd181"
# remark #271: trailing comma is nonstandard
flags="$flags -wd271"
# remark #280: selector expression is constant
flags="$flags -wd280"
# remark #304: access control not specified ("public" by default)
flags="$flags -wd304"
# remark #383: value copied to temporary, reference to temporary used
flags="$flags -wd383"
# remark #444: destructor for base class ... is not virtual
flags="$flags -wd444"
# remark #593: variable ... was set but never used
flags="$flags -wd593"
# warning #654: overloaded virtual function ... is only partially overridden in class ...
flags="$flags -wd654"
# remark #810: conversion from ... to ... may lose significant bits
flags="$flags -wd810"
# remark #869: parameter ... was never referenced
flags="$flags -wd869"
# warning #873: function ... ::operator new ... has no corresponding operator delete ...
flags="$flags -wd873"
# remark #981: operands are evaluated in unspecified order
flags="$flags -wd981"
# remark #1418: external function definition with no prior declaration
flags="$flags -wd1418"
# remark #1419: external declaration in primary source file
flags="$flags -wd1419"
# remark #1572: floating-point equality and inequality
flags="$flags -wd1572"
# remark #1599: declaration hides variable/parameter ...
flags="$flags -wd1599"
# remark #1720: function ... ::operator new ... has no corresponding member operator delete ...
flags="$flags -wd1720"
if [ $cc_version -lt 110 ]; then
# warns about system headers with recent glibc:
# warning #1292: attribute "__nonnull__" ignored
flags="$flags -wd1292"
fi
if [ $cc_version -ge 100 ]; then
# warning #1899: multicharacter character literal (potential portability problem)
flags="$flags -wd1899"
# vec report defaults to telling where it did loop vectorisation, which is not very important
flags="$flags -vec-report=0 "
fi
if [ $cc_version -ge 110 ]; then
# remark #2259: non-pointer conversion from ... to ... may lose significant bits
flags="$flags -wd2259"
fi
if [ "$enable_lto" != "0" ]; then
has_ipo=`$1 -help ipo | grep '\-ipo'`
if [ -n "$has_ipo" ]; then
# Use IPO (only if we see IPO exists and is requested)
flags="$flags -ipo"
features="$features lto"
fi
fi
elif [ `basename $1 | grep 'clang'` ]; then
# Enable some things only for certain clang versions
cc_version="`$1 -v 2>&1 | head -n 1 | sed s@[^0-9]@@g | cut -c 1-2`"
# aliasing rules are not held in OpenDUNE code
flags="$flags -fno-strict-aliasing"
# -W alone doesn't enable all warnings enabled by -Wall; on the other hand,
# -Weverything enables too many useless warnings that can't be disabled (as of 3.0)
flags="$flags -Wall -W"
# warning: expression result unused
flags="$flags -Wno-unused-value"
# warning: explicitly assigning a variable of type '...' to itself
# it happens when using the FOR_ALL_WINDOWS_FROM_BACK_FROM macro
flags="$flags -Wno-self-assign"
if [ "$cc_version" -lt "30" ]; then
# warning: equality comparison with extraneous parentheses
flags="$flags -Wno-parentheses"
# warning: operands of ? are integers of different signs: 'unsigned int' and 'int'
flags="$flags -Wno-sign-compare"
fi
if [ "$cc_version" -ge "30" ]; then
# warning: equality comparison with extraneous parentheses
# this warning could be useful, but it warns about code in squirrel
flags="$flags -Wno-parentheses-equality"
fi
if [ "$with_ccache" != "0" -o "$with_distcc" != "0" ]; then
# ccache and distcc run separate preprocess and compile passes,
# both are fed with the same CFLAGS. Unfortunately, clang
# complains about -I when compiling preprocessed files:
# "clang: warning: argument unused during compilation: '-I /usr/include'"
flags="$flags -Qunused-arguments"
fi
if [ "$enable_assert" -eq "0" ]; then
# do not warn about unused variables when building without asserts
flags="$flags -Wno-unused-variable"
fi
# rdynamic is used to get useful stack traces from crash reports.
ldflags="$ldflags -rdynamic"
else
# Enable some things only for certain GCC versions
cc_version=`$1 -dumpversion | cut -c 1,3`
if [ $cc_version -lt 33 ]; then
log 1 "configure: error: gcc older than 3.3 can't compile OpenDUNE because of its poor template support"
exit 1
fi
if [ "$os" != "TOS" ]; then
flags="$flags -ansi -pedantic"
fi
flags="$flags -fno-common"
flags="$flags -Wall -Wsign-compare -Wundef"
flags="$flags -Wwrite-strings -Wpointer-arith"
flags="$flags -W -Wredundant-decls"
flags="$flags -Wformat=2 -Wformat-security"
flags="$flags -Wno-format-nonliteral"
if [ $enable_assert -eq 0 ]; then
# Do not warn about unused variables when building without asserts
flags="$flags -Wno-unused-variable"
if [ $cc_version -ge 46 ]; then
# GCC 4.6 gives more warnings, disable them too
flags="$flags -Wno-unused-but-set-variable"
flags="$flags -Wno-unused-but-set-parameter"
fi
fi
if [ $cc_version -ge 34 ]; then
# Warn when a variable is used to initialise itself:
# int a = a;
flags="$flags -Winit-self"
fi
if [ $cc_version -ge 40 ]; then
# GCC 4.0+ complains about that we break strict-aliasing.
# On most places we don't see how to fix it, and it doesn't
# break anything. So disable strict-aliasing to make the
# compiler all happy.
flags="$flags -fno-strict-aliasing"
# Warn about casting-out 'const' with regular C-style cast.
# The preferred way is const_cast<>() which doesn't warn.
flags="$flags -Wcast-qual"
fi
if [ $cc_version -ge 42 ]; then
# GCC 4.2+ automatically assumes that signed overflows do
# not occur in signed arithmetics, whereas we are not
# sure that they will not happen. It furthermore complains
# about its own optimized code in some places.
flags="$flags -fno-strict-overflow"
fi
if [ $cc_version -eq 45 ]; then
# Prevent optimisation supposing enums are in a range specified by the standard
# For details, see http://gcc.gnu.org/PR43680
flags="$flags -fno-tree-vrp"
fi
if [ $cc_version -ge 47 ]; then
# Disable bogus 'attempt to free a non-heap object' warning
flags="$flags -Wno-free-nonheap-object"
fi
if [ "$enable_lto" != "0" ]; then
# GCC 4.5 outputs '%{flto}', GCC 4.6 outputs '%{flto*}'
has_lto=`$1 -dumpspecs | grep '\%{flto'`
if [ -n "$has_lto" ]; then
# Use LTO only if we see LTO exists and is requested
if [ $cc_version -lt 46 ]; then
flags="$flags -flto"
else
flags="$flags -flto=jobserver"
fi
ldflags="$ldflags -fwhole-program"
features="$features lto"
fi
fi
has_rdynamic=`$1 -dumpspecs | grep rdynamic`
if [ -n "$has_rdynamic" ]; then
# rdynamic is used to get useful stack traces from crash reports.
flags="$flags -rdynamic"
ldflags="$ldflags -rdynamic"
fi
fi
eval "$2=\"$flags\""
eval "$3=\"$ldflags\""
eval "$4=\"$features\""
}
make_cflags_and_ldflags() {
# General CFlags for BUILD
CFLAGS_BUILD="$CFLAGS_BUILD"
# LDFLAGS for BUILD
LDFLAGS_BUILD="$LDFLAGS_BUILD"
# FEATURES for BUILD (lto)
FEATURES_BUILD=""
# General CFlags for HOST
CFLAGS="$CFLAGS"
# Libs to compile. In fact this is just LDFLAGS
LIBS=""
# LDFLAGS used for HOST
LDFLAGS="$LDFLAGS"
# FEATURES for HOST (lto)
FEATURES=""
make_compiler_cflags "$cc_build" "CFLAGS_BUILD" "LDFLAGS_BUILD" "FEATURES_BUILD"
make_compiler_cflags "$cc_host" "CFLAGS" "LDFLAGS" "FEATURES"
CFLAGS="$CFLAGS -D$os -I$ROOT_DIR/include"
if [ "$enable_debug" = "0" ]; then
# No debug, add default stuff
OBJS_SUBDIR="release"
if [ "$os" = "MORPHOS" ]; then
CFLAGS="-I/gg/os-include -noixemul -fstrict-aliasing -fexpensive-optimizations -mcpu=604 -fno-inline -mstring -mmultiple $CFLAGS"
LDFLAGS="$LDFLAGS -noixemul"
fi
if [ "$os" = "TOS" ] ; then
CFLAGS="-Ofast -fomit-frame-pointer $CFLAGS"
else
CFLAGS="-O2 -fomit-frame-pointer -Wno-variadic-macros $CFLAGS"
fi
else
OBJS_SUBDIR="debug"
# Each debug level reduces the optimization by a bit
if [ $enable_debug -ge 1 ]; then
CFLAGS="$CFLAGS -g -D_DEBUG"
fi
if [ $enable_debug -ge 2 ]; then
CFLAGS="$CFLAGS -fno-inline"
fi
if [ $enable_debug -ge 3 ]; then
CFLAGS="$CFLAGS -O0"
else
CFLAGS="$CFLAGS -O2"
fi
fi
if [ $enable_debug -le 2 ]; then
if basename "$cc_host" | grep "gcc" &>/dev/null; then
# Define only when compiling with GCC. Some GLIBC versions use GNU
# extensions in a way that breaks build with at least ICC.
# This requires -O1 or more, so debug level 3 (-O0) is excluded.
osversion=`uname -r | cut -f 1 -d'.'`
if [ "$os" != "OSX" ] || [ "$os" = "OSX" -a "$osversion" -ne 9 ] ; then
# FORTIFY_SOURCE causes problem with OS X 10.5 / Xcode 3.1.4
# OS X 10.5.xx is Darwin 9.xx
CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2"
fi
# Just add -O1 to the tools needed for building.
CFLAGS_BUILD="$CFLAGS_BUILD -D_FORTIFY_SOURCE=2 -O1"
fi
fi
if [ "$os" = "OSX" ] && [ $cc_version -eq 40 ]; then
# Apple's GCC 4.0 has a compiler bug for x86_64 with (higher) optimization,
# wrongly optimizing ^= in loops. This disables the failing optimisation.
CFLAGS="$CFLAGS -fno-expensive-optimizations"
fi
if [ "$enable_profiling" != "0" ]; then
CFLAGS="$CFLAGS -p"
LDFLAGS="$LDFLAGS -pg"
fi
if [ "`echo $1 | cut -c 1-3`" != "icc" ]; then
if [ "$os" = "CYGWIN" ]; then
flags="$flags -mwin32"
LDFLAGS="$LDFLAGS -mwin32"
fi
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
if [ $cc_version -lt 46 ]; then
flags="$flags -mno-cygwin"
LDFLAGS="$LDFLAGS -mno-cygwin"
fi
LDFLAGS="$LDFLAGS -Wl,--subsystem,windows"
LIBS="$LIBS -lwinmm -lcomctl32 -lgdi32"
if [ $cc_version -ge 44 ]; then
LDFLAGS_BUILD="$LDFLAGS_BUILD -static-libgcc"
fi
if [ $cc_version -ge 47 ]; then
CFLAGS="$CFLAGS -mno-ms-bitfields"
fi
fi
fi
if [ "$os" = "WINCE" ]; then
LIBS="$LIBS -lcoredll -lcorelibc -laygshell -lws2 -e WinMainCRTStartup"
fi
if [ "$os" = "MORPHOS" ]; then
# -Wstrict-prototypes generates much noise because of system headers
CFLAGS="$CFLAGS -Wno-strict-prototypes"
fi
if [ "$os" = "OSX" ]; then
# Add macports include dir which is not always set a default system dir. This avoids zillions of bogus warnings.
CFLAGS="$CFLAGS -isystem/opt/local/include"
# Add OS X SDK audio frameworks
LDFLAGS="-Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit $LDFLAGS"
LDFLAGS="-Wl,-framework,CoreFoundation $LDFLAGS"
if [ "$enable_universal" = "0" ]; then
# Universal builds set this elsewhere
CFLAGS="$OSX_SYSROOT $CFLAGS"
LDFLAGS="$OSX_LD_SYSROOT $LDFLAGS"
fi
if [ "$enable_universal" = "0" ] && [ $cc_version -ge 40 ]; then
# Only set the min version when not doing an universal build.
# Universal builds set the version elsewhere.
if [ "$cpu_type" = "64" ]; then
if [ -n "$sdl2_config" ]; then
CFLAGS="$CFLAGS -mmacosx-version-min=10.6"
else
CFLAGS="$CFLAGS -mmacosx-version-min=10.5"
fi
else
gcc_cpu=`$cc_host -dumpmachine`
if [ "`echo $gcc_cpu | cut -c 1-3`" = "ppc" -o "`echo $gcc_cpu | cut -c 1-7`" = "powerpc" ]; then
# PowerPC build can run on 10.3
CFLAGS="$CFLAGS -mmacosx-version-min=10.3"
else
# Intel is only available starting from 10.4
CFLAGS="$CFLAGS -mmacosx-version-min=10.4"
fi
machine=$(machine)
case $machine in
ppc7400 | ppc7450 | ppc970)
CFLAGS="$CFLAGS -maltivec" ;;
esac
fi
fi
fi
if [ "$os" = "BEOS" ] || [ "$os" = "HAIKU" ]; then
LIBS="$LIBS -lmidi -lbe"
fi
# Most targets act like UNIX, just with some additions
if [ "$os" = "BEOS" ] || [ "$os" = "HAIKU" ] || [ "$os" = "OSX" ] || [ "$os" = "MORPHOS" ] || [ "$os" = "FREEBSD" ] || [ "$os" = "OPENBSD" ] || [ "$os" = "NETBSD" ] || [ "$os" = "HPUX" ] || [ "$os" = "SUNOS" ] || [ "$os" = "OS2" ]; then
CFLAGS="$CFLAGS -DUNIX"
fi
# And others like Windows
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "WINCE" ]; then
CFLAGS="$CFLAGS -DWIN"
fi
if [ "$os" = "TOS" ]; then
CFLAGS="-m68030 -msoft-float $CFLAGS"
LDFLAGS="$LDFLAGS -Wl,--traditional-format"
as_host="vasmm68k_mot"
asflags="-m68030 -Faout -quiet"
fi
if [ -n "$sdl_config" ]; then
CFLAGS="$CFLAGS -DWITH_SDL"
# SDL must not add _GNU_SOURCE as it breaks many platforms
CFLAGS="$CFLAGS `$sdl_config --cflags | sed 's@-D_GNU_SOURCE[^ ]*@@'`"
if [ "$enable_static" != "0" ]; then
LIBS="$LIBS `$sdl_config --static-libs`"
if [ $with_sdlimage -gt 0 ]; then
if [ "$os" == "OSX" ] ; then
LIBS="$LIBS $(pkg-config SDL_image --libs-only-L | cut -c 3- | tr -d ' ')/libSDL_image.a"
else
LIBS="$LIBS -lSDL_image"
fi
fi
else
LIBS="$LIBS `$sdl_config --libs`"
if [ $with_sdlimage -gt 0 ]; then
LIBS="$LIBS -lSDL_image"
fi
fi
if [ $with_sdlimage -eq 0 ]; then
CFLAGS="$CFLAGS -DWITHOUT_SDLIMAGE"
fi
fi