[Libreoffice-commits] core.git: config_host.mk.in configure.ac idlc/Executable_idlc.mk idlc/source
Caolán McNamara (via logerrit)
logerrit at kemper.freedesktop.org
Thu Aug 12 18:22:09 UTC 2021
config_host.mk.in | 1 +
configure.ac | 14 ++++++++++++++
idlc/Executable_idlc.mk | 8 ++++++++
idlc/source/idlccompile.cxx | 8 ++++++++
4 files changed, 31 insertions(+)
New commits:
commit b0c4ca9e088cbff5a5dbc5e95486397041a51d4a
Author: Caolán McNamara <caolanm at redhat.com>
AuthorDate: Wed Aug 11 20:55:14 2021 +0100
Commit: Caolán McNamara <caolanm at redhat.com>
CommitDate: Thu Aug 12 20:21:33 2021 +0200
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 at redhat.com>
Reviewed-by: Caolán McNamara <caolanm at redhat.com>
diff --git a/config_host.mk.in b/config_host.mk.in
index 58ca1d1c14fb..6810660067b0 100644
--- a/config_host.mk.in
+++ b/config_host.mk.in
@@ -635,6 +635,7 @@ export SYSTEM_RHINO=@SYSTEM_RHINO@
export SYSTEM_SERF=@SYSTEM_SERF@
export SYSTEM_STAROFFICE=@SYSTEM_STAROFFICE@
export SYSTEM_UCPP=@SYSTEM_UCPP@
+export SYSTEM_UCPP_IS_GCC=@SYSTEM_UCPP_IS_GCC@
export SYSTEM_VISIO=@SYSTEM_VISIO@
export SYSTEM_WPD=@SYSTEM_WPD@
export SYSTEM_WPG=@SYSTEM_WPG@
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)
diff --git a/idlc/Executable_idlc.mk b/idlc/Executable_idlc.mk
index e194e9049c77..f2f79dcb8911 100644
--- a/idlc/Executable_idlc.mk
+++ b/idlc/Executable_idlc.mk
@@ -35,10 +35,18 @@ $(eval $(call gb_Executable_add_scanners,idlc,\
))
ifneq (,$(SYSTEM_UCPP))
+
$(eval $(call gb_Executable_add_defs,idlc,\
-DSYSTEM_UCPP \
-DUCPP=\"file://$(SYSTEM_UCPP)\" \
))
+
+ifneq ($(SYSTEM_UCPP_IS_GCC),)
+$(eval $(call gb_Executable_add_defs,idlc,\
+ -DSYSTEM_UCPP_IS_GCC \
+))
+endif
+
endif
$(eval $(call gb_Executable_add_exception_objects,idlc,\
diff --git a/idlc/source/idlccompile.cxx b/idlc/source/idlccompile.cxx
index bf3325d6821a..1902d63e0cad 100644
--- a/idlc/source/idlccompile.cxx
+++ b/idlc/source/idlccompile.cxx
@@ -237,7 +237,15 @@ sal_Int32 compileFile(const OString * pathname)
::std::vector< OUString> lCppArgs;
lCppArgs.emplace_back("-DIDL");
lCppArgs.emplace_back("-C");
+#ifdef SYSTEM_UCPP_IS_GCC
+ // -nostdinc Do not search the standard system directories for header files
+ lCppArgs.emplace_back("-nostdinc");
+ // with gcc cpp, even when not explicitly including anything, /usr/include/stdc-predef.h
+ // gets inserted without -nostdinc
+#else
+ // -zI Do not use the standard (compile-time) include path.
lCppArgs.emplace_back("-zI");
+#endif
Options* pOptions = idlc()->getOptions();
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