build: Allow for Xcode 15 ld -v output

Since Xcode 15 beta 6, ld -v output differs from previous versions:

* macOS 13/Xcode 14:

  @(#)PROGRAM:ld  PROJECT:ld64-857.1

* macOS 14/Xcode 15:

  @(#)PROGRAM:ld  PROJECT:dyld-1015.1

configure cannot handle the new form, so LD64_VERSION isn't set.

This patch fixes this.  The autoconf manual states that sed doesn't
portably support alternation, so I'm using two separate expressions to
extract the version number.

Tested on x86_64-apple-darwin23.0.0.

2023-08-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	gcc:
	* configure.ac (gcc_cv_ld64_version): Allow for dyld in ld -v
	output.
	* configure: Regenerate.

(cherry picked from commit 0beac9209f0ae230b34ad31e76e7b0b633a5fb21)

diff --git a/gcc/configure b/gcc/configure
index a6f39ba465922100eeba0256d3d53b4f621bfd35..f46c8c151475298f6301ba3a1001423d88793202 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -30639,7 +30639,8 @@ $as_echo "$gcc_cv_ld64_major" >&6; }
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker version" >&5
 $as_echo_n "checking linker version... " >&6; }
     if test x"${gcc_cv_ld64_version}" = x; then
-      gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | grep ld64 | sed s/.*ld64-// | awk '{print $1}'`
+      gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | $EGREP 'ld64|dyld' \
+      | sed -e 's/.*ld64-//' -e 's/.*dyld-//'| awk '{print $1}'`
     fi
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_ld64_version" >&5
 $as_echo "$gcc_cv_ld64_version" >&6; }

diff --git a/gcc/configure.ac b/gcc/configure.ac
index 00004ed70c59e4df0633c2961fba8b7832cdb49f..947d7cd596e6791d83894c4a2cd065c39596f27a 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -6296,7 +6296,8 @@ if test x"$ld64_flag" = x"yes"; then
     # If the version was not specified, try to find it.
     AC_MSG_CHECKING(linker version)
     if test x"${gcc_cv_ld64_version}" = x; then
-      gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | grep ld64 | sed s/.*ld64-// | awk '{print $1}'`
+      gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | $EGREP 'ld64|dyld' \
+      | sed -e 's/.*ld64-//' -e 's/.*dyld-//'| awk '{print $1}'`
     fi
     AC_MSG_RESULT($gcc_cv_ld64_version)