dev-libs/libzia: Fix detection of strerror_r return type

Closes: https://bugs.gentoo.org/942789
Signed-off-by: Thomas Beierlein <[email protected]>

dev-libs/libzia/files/libzia-4.64-musl-strerror_r.patch

@@ -0,0 +1,14 @@
+# fix detecxtion of return type of strerror_r (bug #942789)
+diff --git a/configure.ac b/configure.ac
+index 0f4efac..2f4526e 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -511,7 +511,7 @@ fi
+
+ OLDCFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS -Werror"
+-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <string.h> ]], [[ int i = strerror_r(1);]])],[ AC_DEFINE([Z_STRERROR_R_RETURNS_INT], [], [strerror_r returns int not char*])],[]) 
++AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <string.h> ]], [[ int i = strerror_r(1, NULL, 1);]])],[ AC_DEFINE([STRERROR_R_RETURNS_INT], [], [strerror_r returns int not char*])],[]) 
+ CFLAGS=$OLDCFLAGS               
+
+

dev-libs/libzia/libzia-4.64.ebuild → dev-libs/libzia/libzia-4.64-r1.ebuild

@@ -32,11 +32,13 @@ src_prepare() {
 	sed -i -e "s/docsdir/#docsdir/g" \
 		-e "s/docs_/#docs_/g" Makefile.am || die
 
-	# fix build for MUSL (bugs #832235, 935544)
+	# fix build for MUSL (bugs #832235, 935544, 942789)
 	if use elibc_musl ; then
 		sed -i -e "s/zstr.h>/zstr.h>\\n#include <libunwind.h>/" src/zbfd.c || die
 		sed -i -e "s/ backtrace(/ unw_backtrace(/" src/zbfd.c || die
+		eapply "${FILESDIR}/${PN}-4.64-musl-strerror_r.patch"
 	fi
+
 	eautoreconf
 }