From 2d11044217edd9168eafea1c8c60603f87b0e00d Mon Sep 17 00:00:00 2001
From: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Date: Thu, 24 Sep 2015 08:51:39 +0000
Subject: Use CRTs provided by Solaris

	gcc:
	* configure.ac (gcc_cv_solaris_crts): New test.
	* configure. Regenerate.
	* config.in: Regenerate.
	* config/sol2.h (STARTFILE_SPEC): Simplify, provide
	HAVE_SOLARIS_CRTS variant.

	libgcc:
	* configure.ac (libgcc_cv_solaris_crts): New test.
	* configure: Regenerate.
	* config.in: Regenerate.
	* config/sol2/crtp.c, config/sol2/crtpg.c: New files.
	* config/gmon-sol2.c: Rename to ...
	* config/sol2/gmon.c: ... this.
	Include auto-target.h.
	(internal_mcount): Wrap setup handling in !HAVE_SOLARIS_CRTS.
	* config/t-sol2: Rename to ...
	* config/sol2/t-sol2: ... this.
	(gmon.o): Reflect renaming.
	(crtp.o, crtpg.o): New rules.
	* config.host (*-*-solaris2*): Reflect renaming.
	Use system CRTs if present.
	Remove default CRT case.

From-SVN: r228077
---
 libgcc/configure.ac | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'libgcc/configure.ac')

diff --git a/libgcc/configure.ac b/libgcc/configure.ac
index dfabd808d11..9d831a76997 100644
--- a/libgcc/configure.ac
+++ b/libgcc/configure.ac
@@ -292,6 +292,31 @@ mips*-*-*)
     [libgcc_cv_mips_hard_float=no])])
 esac
 
+case ${host} in
+*-*-solaris2*)
+  # Check for system-provided CRTs on Solaris 11.x and Solaris 12.
+  AC_CACHE_CHECK([system-provided CRTs on Solaris],
+    		 [libgcc_cv_solaris_crts],
+    [libgcc_cv_solaris_crts=no
+     libgcc_sysroot="`${CC} -print-sysroot`"
+     libgcc_libdir="$libgcc_sysroot/usr/lib"
+     # At the time they were added, gcrt1.o became a symlink for backwards
+     # compatibility on x86, while crt1.o was added on sparc, so check for that.
+     case ${host} in
+       i?86-*-solaris2* | x86_64-*-solaris2*)
+         if test -h "$libgcc_libdir/gcrt1.o"; then libgcc_cv_solaris_crts=yes; fi
+	 ;;
+       sparc*-*-solaris2*)
+         if test -f "$libgcc_libdir/crt1.o"; then libgcc_cv_solaris_crts=yes; fi
+	 ;;
+     esac])
+  if test $libgcc_cv_solaris_crts = yes; then
+    AC_DEFINE(HAVE_SOLARIS_CRTS, 1,
+      [Define if the system-provided CRTs are present on Solaris.])
+  fi
+  ;;
+esac
+
 # Determine the version of glibc, if any, used on the target.
 AC_MSG_CHECKING([for target glibc version])
 AC_ARG_WITH([glibc-version],
-- 
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