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authorCaolán McNamara <caolanm@redhat.com>2021-08-11 20:55:14 +0100
committerCaolán McNamara <caolanm@redhat.com>2021-08-12 20:21:33 +0200
commitb0c4ca9e088cbff5a5dbc5e95486397041a51d4a (patch)
treee43eb1b6b1070150c3a43f05fdd39120e301e885 /configure.ac
parentdd76c656017b11d30b48a2df6c20e4b42f35a23c (diff)
make --with-idlc-cpp=cpp work for gcc cpp as a ucpp replacement
e.g. the example of https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1524638 has the same output .urd using cpp with these flags as ucpp created Change-Id: Iadfd2deba7d365c66c3260fd6736c031987e107c Reviewed-on: https://gerrit.libreoffice.org/c/core/+/120347 Tested-by: Jenkins Tested-by: Caolán McNamara <caolanm@redhat.com> Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac14
1 files changed, 14 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index f4a0071e1dd9..bafd5b39e135 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8807,9 +8807,22 @@ dnl ===================================================================
dnl Check for C preprocessor to use
dnl ===================================================================
AC_MSG_CHECKING([which C preprocessor to use in idlc])
+SYSTEM_UCPP_IS_GCC=
if test -n "$with_idlc_cpp"; then
AC_MSG_RESULT([$with_idlc_cpp])
AC_PATH_PROG(SYSTEM_UCPP, $with_idlc_cpp)
+ AC_MSG_CHECKING([if $with_idlc_cpp is GCC CPP])
+ # ucpp will accept -v (to output version), warn about the others as unknown
+ # and return 1 (due to -v)
+ # gcc will accept -v (as verbose), --version (to output version) and -nostdinc
+ # and return 0 (due to --version ) if all options are supported
+ $SYSTEM_UCPP -v --version -nostdinc >/dev/null 2>/dev/null
+ if test $? -eq 0; then
+ SYSTEM_UCPP_IS_GCC=TRUE
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
else
AC_MSG_RESULT([ucpp])
AC_MSG_CHECKING([which ucpp tp use])
@@ -8822,6 +8835,7 @@ else
fi
fi
AC_SUBST(SYSTEM_UCPP)
+AC_SUBST(SYSTEM_UCPP_IS_GCC)
dnl ===================================================================
dnl Check for epm (not needed for Windows)