X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=config%2Fpicflag.m4;h=2f5b9721eb2fa8f6058beb9a15585612df49bb13;hb=a025b477cc466112af0b120c5f2bf5d62a62017e;hp=3bcdbf1de307fb1e918238d6e94f4ccfdc780819;hpb=f0c897ef0a1aa2c4983cd216a4aadff82dcbad4a;p=deliverable%2Fbinutils-gdb.git

diff --git a/config/picflag.m4 b/config/picflag.m4
index 3bcdbf1de3..2f5b9721eb 100644
--- a/config/picflag.m4
+++ b/config/picflag.m4
@@ -7,9 +7,15 @@ AC_DEFUN([_GCC_PICFLAG], [
 case "${$2}" in
     # PIC is the default on some targets or must not be used.
     *-*-darwin*)
-	# PIC is the default on this platform
-	# Common symbols not allowed in MH_DYLIB files
-	$1=-fno-common
+	# For darwin, common symbols are not allowed in MH_DYLIB files
+	case "${CFLAGS}" in
+	  # If we are using a compiler supporting mdynamic-no-pic
+	  # and the option has been tested as safe to add, then cancel
+	  # it here, since the code generated is incompatible with shared
+	  # libs.
+	  *-mdynamic-no-pic*) $1='-fno-common -mno-dynamic-no-pic' ;;
+	  *) $1=-fno-common ;;
+	esac
 	;;
     alpha*-dec-osf5*)
 	# PIC is the default.