Index: ChangeLog
===================================================================
RCS file: /cvs/autoconf/ChangeLog,v
retrieving revision 1.926
diff -u -r1.926 ChangeLog
--- ChangeLog	2000/10/17 16:34:10	1.926
+++ ChangeLog	2000/10/18 13:16:23
@@ -1,3 +1,15 @@
+2000-10-18  Morten Eriksen  <address@hidden>
+
+	* aclang.m4 (_AC_PROG_CC_G): Make _AC_PROG_CC_G use the
+	_AC_COMPILE_IFELSE macro instead of reinventing the wheel. This
+	also takes care of a bug where the "-g" option was accepted if the
+	compiler silently exits with status unequal to 0.
+	(_AC_PROG_CXX_G): Likewise.
+	(AC_PROG_CC): As _AC_PROG_CC_G depends on $ac_objext and
+	$ac_exeext, move the expansion of _AC_OBJEXT and _AC_EXEEXT in
+	front of _AC_PROG_CC_G.
+	(AC_PROG_CXX): Likewise.
+	
 2000-10-17  Morten Eriksen  <address@hidden>
 
 	* acgeneral.m4 (AC_CHECK_TOOL): As AC_CHECK_PROG first tests the
Index: aclang.m4
===================================================================
RCS file: /cvs/autoconf/aclang.m4,v
retrieving revision 1.72
diff -u -r1.72 aclang.m4
--- aclang.m4	2000/10/16 18:40:19	1.72
+++ aclang.m4	2000/10/18 13:16:36
@@ -712,9 +709,9 @@
 _AC_LANG_COMPILER_WORKS
 _AC_LANG_COMPILER_GNU
 GCC=`test $ac_compiler_gnu = yes && echo yes`
-_AC_PROG_CC_G
 AC_EXPAND_ONCE([_AC_OBJEXT])
 AC_EXPAND_ONCE([_AC_EXEEXT])
+_AC_PROG_CC_G
 AC_LANG_POP
 ])# AC_PROG_CC
 
@@ -727,16 +724,10 @@
 define([_AC_PROG_CC_G],
 [ac_test_CFLAGS=${CFLAGS+set}
 ac_save_CFLAGS=$CFLAGS
-CFLAGS=
+CFLAGS="-g"
 AC_CACHE_CHECK(whether ${CC-cc} accepts -g, ac_cv_prog_cc_g,
-[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
-if ${CC-cc} -g -c conftest.$ac_ext 2>&1 | grep . >/dev/null; then
-  ac_cv_prog_cc_g=no
-else
-  ac_cv_prog_cc_g=yes
-fi
-rm -f conftest*
-])
+               [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [ac_cv_prog_cc_g=yes],
+                                                        [ac_cv_prog_cc_g=no])])
 if test "$ac_test_CFLAGS" = set; then
   CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
@@ -907,9 +898,9 @@
 _AC_LANG_COMPILER_WORKS
 _AC_LANG_COMPILER_GNU
 GXX=`test $ac_compiler_gnu = yes && echo yes`
-_AC_PROG_CXX_G
 AC_EXPAND_ONCE([_AC_OBJEXT])
 AC_EXPAND_ONCE([_AC_EXEEXT])
+_AC_PROG_CXX_G
 AC_LANG_POP
 ])# AC_PROG_CXX
 
@@ -922,16 +913,11 @@
 define([_AC_PROG_CXX_G],
 [ac_test_CXXFLAGS=${CXXFLAGS+set}
 ac_save_CXXFLAGS=$CXXFLAGS
-CXXFLAGS=
+CXXFLAGS="-g"
 AC_CACHE_CHECK(whether ${CXX-g++} accepts -g, ac_cv_prog_cxx_g,
-[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
-if ${CXX-g++} -g -c conftest.$ac_ext 2>&1 | grep . >/dev/null; then
-  ac_cv_prog_cxx_g=no
-else
-  ac_cv_prog_cxx_g=yes
-fi
-rm -f conftest*
-])
+               [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+                                   [ac_cv_prog_cxx_g=yes],
+                                   [ac_cv_prog_cxx_g=no])])
 if test "$ac_test_CXXFLAGS" = set; then
   CXXFLAGS=$ac_save_CXXFLAGS
 elif test $ac_cv_prog_cxx_g = yes; then