Add a BUILD_FLAGS variable so that autoconf checks have a place

to store additional flag options since too many things can
and do override CPPFLAGS. Also, this is exported, unlike CPPFLAGS
so it can be actually used elsewhere. This should enable us
to remove the AC_SUBSTs in the intel checks, but I have no way
of testing it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161233 91177308-0d34-0410-b5e6-96231b3b80d8

Makefile.config.in

@@ -196,6 +196,7 @@ ZIP        := @ZIP@
 HAVE_PTHREAD := @HAVE_PTHREAD@
 
 LIBS       := @LIBS@
+BUILD_FLAGS := @BUILD_FLAGS@
 
 # Targets that we should build
 TARGETS_TO_BUILD=@TARGETS_TO_BUILD@

Makefile.rules

@@ -730,13 +730,13 @@ else
 endif
 
 Compile.C     = $(Compile.Wrapper) \
-	          $(CC) $(CPP.Flags) $(C.Flags) $(CFLAGS) $(CPPFLAGS) \
+	          $(CC) $(CPP.Flags) $(C.Flags) $(CFLAGS) $(CPPFLAGS) $(BUILD_FLAGS) \
                 $(TargetCommonOpts) $(CompileCommonOpts) -c
 Compile.CXX   = $(Compile.Wrapper) \
-	          $(CXX) $(CPP.Flags) $(CXX.Flags) $(CXXFLAGS) $(CPPFLAGS) \
+	          $(CXX) $(CPP.Flags) $(CXX.Flags) $(CXXFLAGS) $(CPPFLAGS) $(BUILD_FLAGS) \
                 $(TargetCommonOpts) $(CompileCommonOpts) -c
 Preprocess.CXX= $(Compile.Wrapper) \
-	          $(CXX) $(CPP.Flags) $(TargetCommonOpts) $(CPPFLAGS) \
+	          $(CXX) $(CPP.Flags) $(TargetCommonOpts) $(CPPFLAGS) $(BUILD_FLAGS) \
                 $(CompileCommonOpts) $(CXX.Flags) -E
 Link          = $(Compile.Wrapper) \
 	          $(CXX) $(CPP.Flags) $(CXX.Flags) $(CXXFLAGS) $(LD.Flags) \

autoconf/configure.ac

@@ -1201,7 +1201,7 @@ AC_ARG_WITH(oprofile,
         no) llvm_cv_oppath=
             AC_SUBST(USE_OPROFILE, [0]) ;;
         *) llvm_cv_oppath="${withval}/lib/oprofile"
-           CPPFLAGS="-I${withval}/include";;
+           BUILD_FLAGS="-I${withval}/include";;
       esac
       case $llvm_cv_os_type in
         Linux)
@@ -1262,7 +1262,7 @@ AC_ARG_WITH(intel-jitevents,
       AC_SUBST(INTEL_JITEVENTS_LIBDIR)
 
       LIBS="$LIBS -L${INTEL_JITEVENTS_LIBDIR}"
-      CPPFLAGS="$CPPFLAGS -I$INTEL_JITEVENTS_INCDIR"
+      BUILD_FLAGS="$CPPFLAGS -I$INTEL_JITEVENTS_INCDIR"
 
       AC_SEARCH_LIBS(iJIT_IsProfilingActive, jitprofiling, [], [
         echo "Error! Cannot find libjitprofiling.a. Please check path specified in flag --with-intel-jitevents"
@@ -1280,6 +1280,9 @@ AC_ARG_WITH(intel-jitevents,
 AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
                    [Define if we have the Intel JIT API runtime support library])
 
+dnl Substitute this here for now.
+AC_SUBST(BUILD_FLAGS)
+
 dnl===-----------------------------------------------------------------------===
 dnl===
 dnl=== SECTION 6: Check for header files

configure

@@ -765,6 +765,7 @@ USE_OPROFILE
 USE_INTEL_JITEVENTS
 INTEL_JITEVENTS_INCDIR
 INTEL_JITEVENTS_LIBDIR
+BUILD_FLAGS
 HAVE_PTHREAD
 HUGE_VAL_SANITY
 MMAP_FILE
@@ -10210,7 +10211,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10213 "configure"
+#line 10214 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13073,7 +13074,7 @@ if test "${with_oprofile+set}" = set; then
             USE_OPROFILE=0
  ;;
         *) llvm_cv_oppath="${withval}/lib/oprofile"
-           CPPFLAGS="-I${withval}/include";;
+           BUILD_FLAGS="-I${withval}/include";;
       esac
       case $llvm_cv_os_type in
         Linux)
@@ -13500,7 +13501,7 @@ echo "$as_me: error:
 
 
       LIBS="$LIBS -L${INTEL_JITEVENTS_LIBDIR}"
-      CPPFLAGS="$CPPFLAGS -I$INTEL_JITEVENTS_INCDIR"
+      BUILD_FLAGS="$CPPFLAGS -I$INTEL_JITEVENTS_INCDIR"
 
       { echo "$as_me:$LINENO: checking for library containing iJIT_IsProfilingActive" >&5
 echo $ECHO_N "checking for library containing iJIT_IsProfilingActive... $ECHO_C" >&6; }
@@ -13791,6 +13792,8 @@ _ACEOF
 
 
 
+
+
 ac_header_dirent=no
 for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
   as_ac_Header=`echo "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
@@ -22059,6 +22062,7 @@ USE_OPROFILE!$USE_OPROFILE$ac_delim
 USE_INTEL_JITEVENTS!$USE_INTEL_JITEVENTS$ac_delim
 INTEL_JITEVENTS_INCDIR!$INTEL_JITEVENTS_INCDIR$ac_delim
 INTEL_JITEVENTS_LIBDIR!$INTEL_JITEVENTS_LIBDIR$ac_delim
+BUILD_FLAGS!$BUILD_FLAGS$ac_delim
 HAVE_PTHREAD!$HAVE_PTHREAD$ac_delim
 HUGE_VAL_SANITY!$HUGE_VAL_SANITY$ac_delim
 MMAP_FILE!$MMAP_FILE$ac_delim
@@ -22084,7 +22088,7 @@ LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 89; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 90; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5