X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/6555ccd66061b1e5f186acf1ba56ed3283e74e14..681be555cdc7723d922065295d600457ab8d2adb:/buildlib/tools.m4

diff --git a/buildlib/tools.m4 b/buildlib/tools.m4
index d47d79e7e..9a8d744f2 100644
--- a/buildlib/tools.m4
+++ b/buildlib/tools.m4
@@ -88,3 +88,73 @@ AC_DEFUN(ah_NUM_PROCS,
 	AC_MSG_RESULT([$NUM_PROCS])
 	AC_SUBST(NUM_PROCS)
 ])
+
+AC_DEFUN(rc_GLIBC_VER,
+	[AC_MSG_CHECKING([glibc version])
+	AC_CACHE_VAL(ac_cv_glibc_ver,
+	dummy=if$$
+	cat <<_GLIBC_>$dummy.c
+#include <features.h>
+#include <stdio.h>
+#include <stdlib.h>
+int main(int argc, char **argv) { printf("libc6.%d",__GLIBC_MINOR__); exit(0); }
+_GLIBC_
+	${CC-cc} $dummy.c -o $dummy > /dev/null 2>&1
+	if test "$?" = 0; then
+		GLIBC_VER=`./$dummy`
+		AC_MSG_RESULT([$GLIBC_VER])
+		ac_cv_glibc_ver=$GLIBC_VER
+	else
+		AC_MSG_WARN([cannot determine GNU C library minor version number])
+	fi
+	rm -f $dummy $dummy.c
+	)
+	GLIBC_VER="-$ac_cv_glibc_ver"
+	AC_SUBST(GLIBC_VER)
+])
+
+AC_DEFUN(rc_LIBSTDCPP_VER,
+	[AC_MSG_CHECKING([libstdc++ version])
+	dummy=if$$
+	cat <<_LIBSTDCPP_>$dummy.cc
+#include <features.h>
+#include <stdio.h>
+#include <stdlib.h>
+int main(int argc, char **argv) { exit(0); }
+_LIBSTDCPP_
+	${CXX-c++} $dummy.cc -o $dummy > /dev/null 2>&1
+
+	if test "$?" = 0; then
+		soname=`objdump -p ./$dummy |grep NEEDED|grep libstd`
+                LIBSTDCPP_VER=`echo $soname | sed -e 's/.*NEEDED.*libstdc++\(-libc.*\(-.*\)\)\?.so.\(.*\)/\3\2/'`
+	fi
+	rm -f $dummy $dummy.cc
+
+	if test -z "$LIBSTDCPP_VER"; then
+		AC_MSG_WARN([cannot determine standard C++ library version number])
+	else
+		AC_MSG_RESULT([$LIBSTDCPP_VER])
+		LIBSTDCPP_VER="-$LIBSTDCPP_VER"
+	fi
+	AC_SUBST(LIBSTDCPP_VER)
+])
+
+AC_DEFUN(ah_GCC3DEP,[
+	AC_MSG_CHECKING(if $CXX -MD works)
+	touch gcc3dep.cc
+	${CXX-c++} -MD -o gcc3dep_test.o -c gcc3dep.cc
+	rm -f gcc3dep.cc gcc3dep_test.o
+	if test -e gcc3dep.d; then
+		rm -f gcc3dep.d
+		GCC_MD=input
+		GCC3DEP=
+	elif test -e gcc3dep_test.d; then
+		rm -f gcc3dep_test.d
+		GCC_MD=output
+		GCC3DEP=yes
+	else
+		AC_MSG_ERROR(no)
+	fi
+	AC_MSG_RESULT([yes, for $GCC_MD])
+	AC_SUBST(GCC3DEP)
+])