[gcc r12-2972] Darwin, libcc1: Handle hosts with mdynamic-no-pic support.

[Iain D Sandoe <iains@gcc.gnu.org>]

https://gcc.gnu.org/g:b240450b630da511fadda98bba4862033ff56950

commit r12-2972-gb240450b630da511fadda98bba4862033ff56950
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Sun Jul 4 17:56:05 2021 +0100

    Darwin, libcc1: Handle hosts with mdynamic-no-pic support.
    
    The default for building host-side binaries for mdynamic-no-pic
    hosts is to enable this.  However, it is not compatible with
    dynamic libraries, so must be switched off for libcc1.
    
    Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
    
    libcc1/ChangeLog:
    
            * Makefile.am: Switch mdynamic-no-pic to fPIC.
            * Makefile.in: Regenerated.

Diff:
---
 libcc1/Makefile.am | 1 +
 libcc1/Makefile.in | 1 +
 2 files changed, 2 insertions(+)

diff --git a/libcc1/Makefile.am b/libcc1/Makefile.am
index 9ec021030e2..49a9543ea7d 100644
--- a/libcc1/Makefile.am
+++ b/libcc1/Makefile.am
@@ -27,6 +27,7 @@ AM_CXXFLAGS = $(WARN_FLAGS) $(WERROR) $(visibility) $(CET_HOST_FLAGS)
 if DARWIN_DYNAMIC_LOOKUP
 AM_CXXFLAGS += -Wl,-undefined,dynamic_lookup
 endif
+override CXXFLAGS := $(subst -mdynamic-no-pic,-fPIC,$(CXXFLAGS))
 override CXXFLAGS := $(filter-out -fsanitize=address,$(CXXFLAGS))
 override LDFLAGS := $(filter-out -fsanitize=address,$(LDFLAGS))
 # Can be simplified when libiberty becomes a normal convenience library.
diff --git a/libcc1/Makefile.in b/libcc1/Makefile.in
index 395f01a9821..f8f590d71e9 100644
--- a/libcc1/Makefile.in
+++ b/libcc1/Makefile.in
@@ -810,6 +810,7 @@ uninstall-am: uninstall-cc1libLTLIBRARIES uninstall-pluginLTLIBRARIES
 
 .PRECIOUS: Makefile
 
+override CXXFLAGS := $(subst -mdynamic-no-pic,-fPIC,$(CXXFLAGS))
 override CXXFLAGS := $(filter-out -fsanitize=address,$(CXXFLAGS))
 override LDFLAGS := $(filter-out -fsanitize=address,$(LDFLAGS))