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-rw-r--r--config/acx.m47
1 files changed, 5 insertions, 2 deletions
diff --git a/config/acx.m4 b/config/acx.m4
index ab7f98a..9b40d4f 100644
--- a/config/acx.m4
+++ b/config/acx.m4
@@ -177,14 +177,17 @@ acx_cv_cc_gcc_supports_ada=no
# has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1.
# Therefore we must check for the error message as well as an
# unsuccessful exit.
+# Other compilers, like HP Tru64 UNIX cc, exit successfully when
+# given a .adb file, but produce no object file. So we must check
+# if an object file was really produced to guard against this.
errors=`(${CC} -c conftest.adb) 2>&1 || echo failure`
-if test x"$errors" = x; then
+if test x"$errors" = x && test -f conftest.$ac_objext; then
acx_cv_cc_gcc_supports_ada=yes
break
fi
rm -f conftest.*])
-if test x$GNATBIND != xno && test x$acx_cv_gcc_supports_ada != xno; then
+if test x$GNATBIND != xno && test x$acx_cv_cc_gcc_supports_ada != xno; then
have_gnat=yes
else
have_gnat=no