[gcc r13-2319] Support --disable-fixincludes.

[Martin Liska <marxin@gcc.gnu.org>]

https://gcc.gnu.org/g:be9dd80f9334800300a80268dbb92cf3fafcfcf8

commit r13-2319-gbe9dd80f9334800300a80268dbb92cf3fafcfcf8
Author: Martin Liska <mliska@suse.cz>
Date:   Wed Aug 31 21:55:45 2022 +0200

    Support --disable-fixincludes.
    
    Always install limits.h and syslimits.h header files
    to include folder.
    
    When --disable-fixincludes is used, then no system header files
    are fixed by the tools in fixincludes. Moreover, the fixincludes
    tools are not built any longer.
    
    gcc/ChangeLog:
    
            * Makefile.in: Always install limits.h and syslimits.h to
            include folder.
            * configure.ac: Assign STMP_FIXINC blank if
            --disable-fixincludes is used.
            * configure: Regenerate.

Diff:
---
 gcc/Makefile.in  | 30 +++++++++++++-----------------
 gcc/configure    | 10 ++++++++--
 gcc/configure.ac |  6 ++++++
 3 files changed, 27 insertions(+), 19 deletions(-)

diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 203f0a15187..034f4677fe2 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -3166,24 +3166,27 @@ stmp-int-hdrs: $(STMP_FIXINC) $(T_GLIMITS_H) $(T_STDINT_GCC_H) $(USER_H) fixinc_
 	set -e; for ml in `cat fixinc_list`; do \
 	  sysroot_headers_suffix=`echo $${ml} | sed -e 's/;.*$$//'`; \
 	  multi_dir=`echo $${ml} | sed -e 's/^[^;]*;//'`; \
-	  fix_dir=include-fixed$${multi_dir}; \
+	  include_dir=include$${multi_dir}; \
 	  if $(LIMITS_H_TEST) ; then \
 	    cat $(srcdir)/limitx.h $(T_GLIMITS_H) $(srcdir)/limity.h > tmp-xlimits.h; \
 	  else \
 	    cat $(T_GLIMITS_H) > tmp-xlimits.h; \
 	  fi; \
-	  $(mkinstalldirs) $${fix_dir}; \
-	  chmod a+rx $${fix_dir} || true; \
+	  $(mkinstalldirs) $${include_dir}; \
+	  chmod a+rx $${include_dir} || true; \
 	  $(SHELL) $(srcdir)/../move-if-change \
 	    tmp-xlimits.h  tmp-limits.h; \
-	  rm -f $${fix_dir}/limits.h; \
-	  cp -p tmp-limits.h $${fix_dir}/limits.h; \
-	  chmod a+r $${fix_dir}/limits.h; \
+	  rm -f $${include_dir}/limits.h; \
+	  cp -p tmp-limits.h $${include_dir}/limits.h; \
+	  chmod a+r $${include_dir}/limits.h; \
+	  cp $(srcdir)/gsyslimits.h $${include_dir}/syslimits.h; \
 	done
 # Install the README
-	rm -f include-fixed/README
-	cp $(srcdir)/../fixincludes/README-fixinc include-fixed/README
-	chmod a+r include-fixed/README
+	if [ x$(STMP_FIXINC) != x ]; then \
+	  rm -f include-fixed/README; \
+	  cp $(srcdir)/../fixincludes/README-fixinc include-fixed/README; \
+	  chmod a+r include-fixed/README; \
+	fi;
 	$(STAMP) $@
 
 .PHONY: install-gcc-tooldir
@@ -3268,13 +3271,6 @@ stmp-fixinc: gsyslimits.h macro_list fixinc_list \
 	      cd $(build_objdir)/fixincludes && \
 	      $(SHELL) ./fixinc.sh "$${gcc_dir}/$${fix_dir}" \
 	        $(BUILD_SYSTEM_HEADER_DIR) $(OTHER_FIXINCLUDES_DIRS) ); \
-	    rm -f $${fix_dir}/syslimits.h; \
-	    if [ -f $${fix_dir}/limits.h ]; then \
-	      mv $${fix_dir}/limits.h $${fix_dir}/syslimits.h; \
-	    else \
-	      cp $(srcdir)/gsyslimits.h $${fix_dir}/syslimits.h; \
-	    fi; \
-	    chmod a+r $${fix_dir}/syslimits.h; \
 	  done; \
 	fi
 	$(STAMP) stmp-fixinc
@@ -3992,7 +3988,7 @@ install-mkheaders: stmp-int-hdrs install-itoolsdirs \
 	set -e; for ml in `cat fixinc_list`; do \
 	  multi_dir=`echo $${ml} | sed -e 's/^[^;]*;//'`; \
 	  $(mkinstalldirs) $(DESTDIR)$(itoolsdatadir)/include$${multi_dir}; \
-	  $(INSTALL_DATA) include-fixed$${multi_dir}/limits.h $(DESTDIR)$(itoolsdatadir)/include$${multi_dir}/limits.h; \
+	  $(INSTALL_DATA) include$${multi_dir}/limits.h $(DESTDIR)$(itoolsdatadir)/include$${multi_dir}/limits.h; \
 	done
 	$(INSTALL_SCRIPT) $(srcdir)/../mkinstalldirs \
 		$(DESTDIR)$(itoolsdir)/mkinstalldirs ; \
diff --git a/gcc/configure b/gcc/configure
index 80498e68e36..5c0367c0e04 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -13577,6 +13577,12 @@ then
     BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
 fi
 
+
+if test x$enable_fixincludes = xno;
+then
+    STMP_FIXINC=''
+fi
+
 # Expand extra_headers to include complete path.
 # This substitutes for lots of t-* files.
 extra_headers_list=
@@ -19703,7 +19709,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 19706 "configure"
+#line 19712 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19809,7 +19815,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 19812 "configure"
+#line 19818 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 819b490d1b6..31ec7d9d38b 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -2510,6 +2510,12 @@ then
     BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
 fi
 
+
+if test x$enable_fixincludes = xno;
+then
+    STMP_FIXINC=''
+fi
+
 # Expand extra_headers to include complete path.
 # This substitutes for lots of t-* files.
 extra_headers_list=