File gcc14-bsc1239938.patch of Package gcc14
From 1a6442e5ef6a335ae906bad32a43812c73379109 Mon Sep 17 00:00:00 2001
From: Richard Biener <rguenther@suse.de>
Date: Tue, 25 Mar 2025 18:11:08 +0100
Subject: [PATCH] Add support of --enable-host-pie to the native Ada compiler
To: gcc-patches@gcc.gnu.org
From: Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
PR ada/119440
* gcc-interface/Make-lang.in (GCC_LINK): Filter out -pie in stage 1
(GCC_LLINK): Likewise.
* gcc-interface/Makefile.in (COMPILER): Delete and replace by CC.
(COMPILER_FLAGS): Delete.
(ALL_COMPILERFLAGS): Delete and replace by ALL_CFLAGS.
(ALL_ADAFLAGS): Move around.
(enable_host_pie): New substituted variable.
(LD_PICFLAG): Likewise. Do not add it to TOOLS_LIBS.
(LIBIBERTY): Test enable_host_pie.
(LIBGNAT): Likewise and use libgnat_pic.a if yes.
(TOOLS_FLAGS_TO_PASS): Pass $(PICFLAG) under CFLAGS & $(LD_PICFLAG)
under LDFLAGS. Also pass through ADA_CFLAGS.
(common-tools): Add $(ALL_CFLAGS) $(ADA_CFLAGS) to the --GCC string
of $(GNATLINK) commands.
(../../gnatdll$(exeext)): Likewise.
(gnatmake-re): Likewise.
(gnatlink-re): Likewise.
(gnatlib-shared-dual): Remove all the object files at the end.
gnattools/
PR ada/119440
* configure.ac (host-pie): New switch.
(host-bind-now): Likewise.
Substitute PICFLAG and LD_PICFLAG.
* configure: Regenerate.
* Makefile.in (PICFLAG): New substituted variable.
(LD_PICFLAG): Likewise.
(TOOLS_FLAGS_TO_PASS): Pass $(PICFLAG) under CFLAGS & $(LD_PICFLAG)
under LDFLAGS. Do not pass -I- under ADA_INCLUDES.
(TOOLS_FLAGS_TO_PASS_RE): Likewise.
---
gcc/ada/gcc-interface/Make-lang.in | 8 ++-
gcc/ada/gcc-interface/Makefile.in | 91 +++++++++++++++++-------------
gnattools/Makefile.in | 13 +++--
gnattools/configure | 24 ++++++++
gnattools/configure.ac | 16 +++++-
5 files changed, 107 insertions(+), 45 deletions(-)
diff --git a/gcc/ada/gcc-interface/Make-lang.in b/gcc/ada/gcc-interface/Make-lang.in
index f6404c0b1eb..ec72816f773 100644
--- a/gcc/ada/gcc-interface/Make-lang.in
+++ b/gcc/ada/gcc-interface/Make-lang.in
@@ -271,8 +271,14 @@ GCC_LINKERFLAGS = $(filter-out -Werror, $(ALL_LINKERFLAGS))
GCC_LDFLAGS = $(LDFLAGS)
endif
-GCC_LINK=$(LINKER) $(GCC_LINKERFLAGS) $(GCC_LDFLAGS)
+# Do not link with -pie during stage #1 because the base libgnat.a is not PIC
+ifeq ($(STAGE1),True)
+GCC_LINK= $(filter-out -pie, $(LINKER) $(GCC_LINKERFLAGS) $(GCC_LDFLAGS))
+GCC_LLINK=$(filter-out -pie, $(LLINKER) $(GCC_LINKERFLAGS) $(GCC_LDFLAGS))
+else
+GCC_LINK= $(LINKER) $(GCC_LINKERFLAGS) $(GCC_LDFLAGS)
GCC_LLINK=$(LLINKER) $(GCC_LINKERFLAGS) $(GCC_LDFLAGS)
+endif
# Lists of files for various purposes.
diff --git a/gcc/ada/gcc-interface/Makefile.in b/gcc/ada/gcc-interface/Makefile.in
index 0666fc00bb8..692a35684df 100644
--- a/gcc/ada/gcc-interface/Makefile.in
+++ b/gcc/ada/gcc-interface/Makefile.in
@@ -91,10 +91,11 @@ LS = ls
RANLIB = @RANLIB@
RANLIB_FLAGS = @ranlib_flags@
AWK = @AWK@
-PICFLAG = @PICFLAG@
-COMPILER = $(CC)
-COMPILER_FLAGS = $(CFLAGS)
+# Should we build position-independent host code?
+enable_host_pie = @enable_host_pie@
+PICFLAG = @PICFLAG@
+LD_PICFLAG = @LD_PICFLAG@
SHELL = @SHELL@
PWD_COMMAND = $${PWDCMD-pwd}
@@ -119,7 +120,6 @@ GNATLIBCFLAGS = -g -O2
GNATLIBCFLAGS_FOR_C = \
-W -Wall $(GNATLIBCFLAGS) -fexceptions -DIN_RTS -DHAVE_GETIPINFO
PICFLAG_FOR_TARGET = @PICFLAG_FOR_TARGET@
-ALL_ADAFLAGS = $(CFLAGS) $(ADA_CFLAGS) $(ADAFLAGS)
THREAD_KIND = native
THREADSLIB =
GMEM_LIB =
@@ -236,11 +236,9 @@ ALL_CFLAGS = $(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS)
# Likewise.
ALL_CPPFLAGS = $(CPPFLAGS)
-# Used with $(COMPILER).
-ALL_COMPILERFLAGS = $(ALL_CFLAGS)
+ALL_ADAFLAGS = $(CFLAGS) $(ADA_CFLAGS) $(ADAFLAGS)
-# This is where we get libiberty.a from.
-ifneq ($(findstring $(PICFLAG),-fPIC -fPIE),)
+ifneq ($(enable_host_pie),)
LIBIBERTY = ../../libiberty/pic/libiberty.a
else
LIBIBERTY = ../../libiberty/libiberty.a
@@ -261,9 +259,6 @@ TOOLS_LIBS = ../version.o ../link.o ../targext.o ../../ggc-none.o \
$(LIBGNAT) $(LIBINTL) $(LIBICONV) ../$(LIBBACKTRACE) ../$(LIBIBERTY) \
$(SYSLIBS) $(TGT_LIB)
-# Add -no-pie to TOOLS_LIBS since some of them are compiled with -fno-PIE.
-TOOLS_LIBS += @LD_PICFLAG@
-
# Specify the directories to be searched for header files.
# Both . and srcdir are used, in that order,
# so that tm.h and config.h will be found in the compilation
@@ -299,8 +294,7 @@ ADA_INCLUDES_FOR_SUBDIR = -I. -I$(fsrcdir)/ada
$(CC) -c -x assembler $< $(OUTPUT_OPTION)
.c.o:
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) \
- $(INCLUDES) $< $(OUTPUT_OPTION)
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
.adb.o:
$(CC) -c $(ALL_ADAFLAGS) $(ADA_INCLUDES) $< $(OUTPUT_OPTION)
@@ -378,13 +372,18 @@ endif
include $(fsrcdir)/ada/Makefile.rtl
+ifneq ($(enable_host_pie),)
+LIBGNAT=../$(RTSDIR)/libgnat_pic.a
+else
LIBGNAT=../$(RTSDIR)/libgnat.a
+endif
TOOLS_FLAGS_TO_PASS= \
"CC=$(CC)" \
- "CFLAGS=$(CFLAGS)" \
- "LDFLAGS=$(LDFLAGS)" \
+ "CFLAGS=$(CFLAGS) $(PICFLAG)" \
+ "LDFLAGS=$(LDFLAGS) $(LD_PICFLAG)" \
"ADAFLAGS=$(ADAFLAGS)" \
+ "ADA_CFLAGS=$(ADA_CFLAGS)" \
"INCLUDES=$(INCLUDES_FOR_SUBDIR)"\
"ADA_INCLUDES=$(ADA_INCLUDES) $(ADA_INCLUDES_FOR_SUBDIR)"\
"libsubdir=$(libsubdir)" \
@@ -465,32 +464,41 @@ common-tools: ../stamp-tools
gnatchop gnatcmd gnatkr gnatls gnatprep gnatname \
gnatclean -bargs $(ADA_INCLUDES) $(GNATBIND_FLAGS)
$(GNATLINK) -v gnatcmd -o ../../gnat$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
$(GNATLINK) -v gnatchop -o ../../gnatchop$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
$(GNATLINK) -v gnatkr -o ../../gnatkr$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
$(GNATLINK) -v gnatls -o ../../gnatls$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
$(GNATLINK) -v gnatprep -o ../../gnatprep$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
$(GNATLINK) -v gnatname -o ../../gnatname$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
$(GNATLINK) -v gnatclean -o ../../gnatclean$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
../../gnatdll$(exeext): ../stamp-tools
$(GNATMAKE) -c $(ADA_INCLUDES) gnatdll --GCC="$(CC) $(ALL_ADAFLAGS)"
$(GNATBIND) $(ADA_INCLUDES) $(GNATBIND_FLAGS) gnatdll
$(GNATLINK) -v gnatdll -o $@ \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
gnatmake-re: ../stamp-tools
- $(GNATMAKE) -j0 $(ADA_INCLUDES) -u sdefault --GCC="$(CC) $(MOST_ADA_FLAGS)"
+ $(GNATMAKE) -j0 $(ADA_INCLUDES) -u sdefault --GCC="$(CC) $(ALL_ADAFLAGS)"
$(GNATMAKE) -j0 -c $(ADA_INCLUDES) gnatmake --GCC="$(CC) $(ALL_ADAFLAGS)"
$(GNATBIND) $(ADA_INCLUDES) $(GNATBIND_FLAGS) gnatmake
$(GNATLINK) -v gnatmake -o ../../gnatmake$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
# Note the use of the "mv" command in order to allow gnatlink to be linked with
# with the former version of gnatlink itself which cannot override itself.
@@ -500,7 +508,8 @@ gnatlink-re: ../stamp-tools gnatmake-re
$(GNATMAKE) -j0 -c $(ADA_INCLUDES) gnatlink --GCC="$(CC) $(ALL_ADAFLAGS)"
$(GNATBIND) $(ADA_INCLUDES) $(GNATBIND_FLAGS) gnatlink
$(GNATLINK) -v gnatlink -o ../../gnatlinknew$(exeext) \
- --GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
+ --GCC="$(CC) $(ALL_CFLAGS) $(ADA_CFLAGS) $(ADA_INCLUDES)" \
+ --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
$(MV) ../../gnatlinknew$(exeext) ../../gnatlink$(exeext)
# Needs to be built with CC=gcc
@@ -727,6 +736,14 @@ gnatlib-shared-dual:
$(MV) libgnat_pic$(arext) $(RTSDIR)
$(MV) libgnarl_pic$(arext) $(RTSDIR)
+ # Remove all the object files. They cannot be reused because they have
+ # been generated for the static library and the shared library will be
+ # the first to be rebuilt. Moreover, this will prevent gnatmake to pick
+ # them instead of the prescribed version of the library when the tools
+ # are built for a native compiler.
+ $(RM) $(addprefix $(RTSDIR)/,$(GNATRTL_NONTASKING_OBJS) $(LIBGNAT_OBJS))
+ $(RM) $(addprefix $(RTSDIR)/,$(GNATRTL_TASKING_OBJS))
+
gnatlib-shared-dual-win32:
$(MAKE) $(FLAGS_TO_PASS) \
GNATLIBFLAGS="$(GNATLIBFLAGS)" \
@@ -886,15 +903,13 @@ b_gnatl.adb : $(GNATLINK_OBJS)
$(GNATBIND) $(ADA_INCLUDES) -o b_gnatl.adb gnatlink.ali
b_gnatl.o : b_gnatl.adb
- $(CC) -c $(ALL_ADAFLAGS) $(ADA_INCLUDES) -gnatws -gnatyN \
- $< $(OUTPUT_OPTION)
+ $(CC) -c $(ALL_ADAFLAGS) $(ADA_INCLUDES) -gnatws -gnatyN $< $(OUTPUT_OPTION)
b_gnatm.adb : $(GNATMAKE_OBJS)
$(GNATBIND) $(ADA_INCLUDES) -o b_gnatm.adb gnatmake.ali
b_gnatm.o : b_gnatm.adb
- $(CC) -c $(ALL_ADAFLAGS) $(ADA_INCLUDES) -gnatws -gnatyN \
- $< $(OUTPUT_OPTION)
+ $(CC) -c $(ALL_ADAFLAGS) $(ADA_INCLUDES) -gnatws -gnatyN $< $(OUTPUT_OPTION)
# Provide a `toolexeclibdir' definition for when `gnat-install-lib' is
# wired through gcc/ in a configuration with top-level libada disabled.
@@ -912,7 +927,7 @@ ADA_RTL_DSO_DIR = $(toolexeclibdir)
# some targets.
tracebak.o : tracebak.c
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) \
$(INCLUDES) $(NO_OMIT_ADAFLAGS) $< $(OUTPUT_OPTION)
adadecode.o : adadecode.c adadecode.h
@@ -940,33 +955,33 @@ terminals.o : terminals.c
vx_stack_info.o : vx_stack_info.c
raise-gcc.o : raise-gcc.c raise.h
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) \
-iquote $(srcdir) -iquote $(ftop_srcdir)/libgcc \
$(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
cio.o : cio.c
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) \
$(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
init.o : init.c adaint.h raise.h
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) \
$(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
init-vxsim.o : init-vxsim.c
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) \
$(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
initialize.o : initialize.c raise.h
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) \
$(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
link.o : link.c
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) \
$(ALL_CPPFLAGS) $(INCLUDES_FOR_SUBDIR) \
$< $(OUTPUT_OPTION)
targext.o : targext.c
- $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ADA_CFLAGS) \
-iquote $(srcdir) \
$(ALL_CPPFLAGS) $(INCLUDES_FOR_SUBDIR) \
$< $(OUTPUT_OPTION)
diff --git a/gnattools/Makefile.in b/gnattools/Makefile.in
index e8fc4af0788..1e7c9b8470c 100644
--- a/gnattools/Makefile.in
+++ b/gnattools/Makefile.in
@@ -51,6 +51,9 @@ WARN_CFLAGS = @warn_cflags@
ADA_CFLAGS=@ADA_CFLAGS@
+PICFLAG = @PICFLAG@
+LD_PICFLAG = @LD_PICFLAG@
+
# Variables for gnattools.
ADAFLAGS= -gnatpg -gnata
@@ -79,12 +82,12 @@ CXX_LFLAGS = \
TOOLS_FLAGS_TO_PASS_NATIVE= \
"CC=../../xgcc -B../../" \
"CXX=../../xg++ -B../../ $(CXX_LFLAGS)" \
- "CFLAGS=$(CFLAGS) $(WARN_CFLAGS)" \
- "LDFLAGS=$(LDFLAGS)" \
+ "CFLAGS=$(CFLAGS) $(WARN_CFLAGS) $(PICFLAG)" \
+ "LDFLAGS=$(LDFLAGS) $(LD_PICFLAG)" \
"ADAFLAGS=$(ADAFLAGS)" \
"ADA_CFLAGS=$(ADA_CFLAGS)" \
"INCLUDES=$(INCLUDES_FOR_SUBDIR)" \
- "ADA_INCLUDES=-I- -I../rts $(ADA_INCLUDES_FOR_SUBDIR)"\
+ "ADA_INCLUDES=-I../rts $(ADA_INCLUDES_FOR_SUBDIR)"\
"exeext=$(exeext)" \
"fsrcdir=$(fsrcdir)" \
"srcdir=$(fsrcdir)" \
@@ -97,8 +100,8 @@ TOOLS_FLAGS_TO_PASS_NATIVE= \
TOOLS_FLAGS_TO_PASS_RE= \
"CC=../../xgcc -B../../" \
"CXX=../../xg++ -B../../ $(CXX_LFLAGS)" \
- "CFLAGS=$(CFLAGS)" \
- "LDFLAGS=$(LDFLAGS)" \
+ "CFLAGS=$(CFLAGS) $(WARN_CFLAGS) $(PICFLAG)" \
+ "LDFLAGS=$(LDFLAGS) $(LD_PICFLAG)" \
"ADAFLAGS=$(ADAFLAGS)" \
"ADA_CFLAGS=$(ADA_CFLAGS)" \
"INCLUDES=$(INCLUDES_FOR_SUBDIR)" \
diff --git a/gnattools/configure b/gnattools/configure
index 6cdfbe67af2..1eb0debc2ce 100755
--- a/gnattools/configure
+++ b/gnattools/configure
@@ -585,6 +585,8 @@ ac_unique_file="Makefile.in"
ac_subst_vars='LTLIBOBJS
LIBOBJS
default_gnattools_target
+LD_PICFLAG
+PICFLAG
warn_cflags
OBJEXT
EXEEXT
@@ -657,6 +659,8 @@ ac_subst_files=''
ac_user_opts='
enable_option_checking
enable_maintainer_mode
+enable_host_pie
+enable_host_bind_now
'
ac_precious_vars='build_alias
host_alias
@@ -1281,6 +1285,8 @@ Optional Features:
--enable-maintainer-mode
enable make rules and dependencies not useful (and
sometimes confusing) to the casual installer
+ --enable-host-pie build host code as PIE
+ --enable-host-bind-now link host code as BIND_NOW
Some influential environment variables:
CC C compiler command
@@ -2884,6 +2890,24 @@ if test "x$GCC" = "xyes"; then
fi
+# Enable --enable-host-pie
+# Check whether --enable-host-pie was given.
+if test "${enable_host_pie+set}" = set; then :
+ enableval=$enable_host_pie; PICFLAG=-fPIE; LD_PICFLAG=-pie
+else
+ PICFLAG=-fno-PIE; LD_PICFLAG=-no-pie
+fi
+
+
+
+# Enable --enable-host-bind-now
+# Check whether --enable-host-bind-now was given.
+if test "${enable_host_bind_now+set}" = set; then :
+ enableval=$enable_host_bind_now; LD_PICFLAG="$LD_PICFLAG -Wl,-z,now"
+fi
+
+
+
# Determine what to build for 'gnattools'. Test after the above,
# because testing for CC sets the final value of cross_compiling, even
# if we end up using a different CC. We want to build
diff --git a/gnattools/configure.ac b/gnattools/configure.ac
index 38a28b6ee62..776530aee52 100644
--- a/gnattools/configure.ac
+++ b/gnattools/configure.ac
@@ -1,4 +1,4 @@
-# Configure script for libada.
+# Configure script for gnattools
# Copyright 2003, 2004, 2009, 2012 Free Software Foundation, Inc.
#
# This file is free software; you can redistribute it and/or modify it
@@ -97,6 +97,20 @@ if test "x$GCC" = "xyes"; then
fi
AC_SUBST(warn_cflags)
+# Enable --enable-host-pie
+AC_ARG_ENABLE(host-pie,
+[AS_HELP_STRING([--enable-host-pie],
+ [build host code as PIE])],
+[PICFLAG=-fPIE; LD_PICFLAG=-pie], [PICFLAG=-fno-PIE; LD_PICFLAG=-no-pie])
+AC_SUBST(PICFLAG)
+
+# Enable --enable-host-bind-now
+AC_ARG_ENABLE(host-bind-now,
+[AS_HELP_STRING([--enable-host-bind-now],
+ [link host code as BIND_NOW])],
+[LD_PICFLAG="$LD_PICFLAG -Wl,-z,now"], [])
+AC_SUBST(LD_PICFLAG)
+
# Determine what to build for 'gnattools'. Test after the above,
# because testing for CC sets the final value of cross_compiling, even
# if we end up using a different CC. We want to build
--
2.43.0
