merged from debian-sid

[apt.git] / buildlib / tools.m4

diff --git a/buildlib/tools.m4 b/buildlib/tools.m4
index d47d79e7e8ad05eec1cb1440b741640732d3fe3e..9a8d744f2267daeefea59f95e809c46b34f67592 100644 (file)
--- 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)
+])