[PATCH] libmudflap testsuite: skip -static if no static libs

[Janis Johnson <janis187 at us dot ibm dot com>]

The libmudflap testsuite is run multiple times, including with -static.
All of the tests fail with -static if GCC was built with --disable-static.
This patch skips using -static for libmudflap tests if there is no static
library.  Tested on powerpc64-linux (-m32/-m64) with and without
--disable-static.

Is this OK with the libmudflap maintainer?

2005-11-22  Janis Johnson  <janis187@us.ibm.com>

	* testsuite/lib/libmudflap.exp (libmudflap-init): Remove -static from
	MUDFLAP_FLAGS if static library not supported.
	* testsuite/libmudflap.c/cfrags.exp (MUDFLAP_FLAGS): new.
	* testsuite/libmudflap.c/externs.exp: Ditto.
	* testsuite/libmudflap.c++/ctors.exp: Ditto.
	* testsuite/libmudflap.c++/c++frags.exp: Ditto.
	* testsuite/libmudflap.cth/cthfrags.exp: Ditto.

Index: libmudflap/testsuite/libmudflap.c/cfrags.exp
===================================================================
--- libmudflap/testsuite/libmudflap.c/cfrags.exp	(revision 107157)
+++ libmudflap/testsuite/libmudflap.c/cfrags.exp	(working copy)
@@ -1,3 +1,5 @@
+global MUDFLAP_FLAGS
+set MUDFLAP_FLAGS [list {} {-static} {-O2} {-O3}]
 
 libmudflap-init c
 
@@ -4,7 +6,7 @@
 dg-init
 
 global srcdir
-foreach flags [list {} {-static} {-O2} {-O3}] {
+foreach flags $MUDFLAP_FLAGS {
     foreach srcfile [lsort [glob -nocomplain \
                             ${srcdir}/libmudflap.c/*frag.c \
                             ${srcdir}/libmudflap.c/heap*.c \
Index: libmudflap/testsuite/libmudflap.c/externs.exp
===================================================================
--- libmudflap/testsuite/libmudflap.c/externs.exp	(revision 107157)
+++ libmudflap/testsuite/libmudflap.c/externs.exp	(working copy)
@@ -1,3 +1,6 @@
+global MUDFLAP_FLAGS
+set MUDFLAP_FLAGS [list {} {-static} {-O2} {-O3}]
+
 libmudflap-init c
 dg-init
 
@@ -3,5 +6,5 @@
 global srcdir subdir
 
-foreach flags [list {} {-static} {-O2} {-O3}] {
+foreach flags $MUDFLAP_FLAGS {
     set l1 [libmudflap_target_compile "$srcdir/$subdir/externs-1.c" "externs-1.o" object {additional_flags=-fmudflap}]
     set test "externs-1 compilation ${flags}"
Index: libmudflap/testsuite/lib/libmudflap.exp
===================================================================
--- libmudflap/testsuite/lib/libmudflap.exp	(revision 107157)
+++ libmudflap/testsuite/lib/libmudflap.exp	(working copy)
@@ -117,6 +117,28 @@
           unset gluefile
       }
     }
+
+    # If there is no static library then don't run tests with -static.
+    global tool
+    set opts "additional_flags=-static"
+    lappend opts "additional_flags=-fmudflap"
+    lappend opts "additional_flags=-lmudflap"
+    set src stlm[pid].c
+    set exe stlm[pid].x
+
+    set f [open $src "w"]
+    puts $f "int main () { }"
+    close $f
+    set lines [${tool}_target_compile $src $exe executable "$opts"]
+    file delete $src
+    remote_file build delete $exe
+
+    if { ![string match "" $lines] } {
+	# Compilation failed; assume static library is not available.
+	global MUDFLAP_FLAGS
+	set i [lsearch $MUDFLAP_FLAGS "*static*"]
+	set MUDFLAP_FLAGS [lreplace $MUDFLAP_FLAGS $i $i]
+    }
 }
 
 proc libmudflap-dg-test { prog do_what extra_tool_flags } {
Index: libmudflap/testsuite/libmudflap.c++/ctors.exp
===================================================================
--- libmudflap/testsuite/libmudflap.c++/ctors.exp	(revision 107157)
+++ libmudflap/testsuite/libmudflap.c++/ctors.exp	(working copy)
@@ -1,3 +1,5 @@
+global MUDFLAP_FLAGS
+set MUDFLAP_FLAGS [list {} {-static} {-O2} {-O3}]
 
 libmudflap-init c++
 if {$cxx == "g++"} then {
@@ -9,7 +11,7 @@
 
 global srcdir subdir
 
-foreach flags [list {} {-static} {-O2} {-O3}] {
+foreach flags $MUDFLAP_FLAGS {
     set l1 [libmudflap_target_compile "$srcdir/$subdir/ctors-1.cxx" "ctors-1.o" object {additional_flags=-fmudflap}]
     set test "ctors-1 compilation ${flags}"
     if [string match "*mudflap cannot track unknown size extern *k*" $l1] { pass $test } { fail $test }
Index: libmudflap/testsuite/libmudflap.c++/c++frags.exp
===================================================================
--- libmudflap/testsuite/libmudflap.c++/c++frags.exp	(revision 107157)
+++ libmudflap/testsuite/libmudflap.c++/c++frags.exp	(working copy)
@@ -1,3 +1,5 @@
+global MUDFLAP_FLAGS
+set MUDFLAP_FLAGS [list {} {-static} { -O} {-O2} {-O3}]
 
 libmudflap-init c++
 if {$cxx == "g++"} then {
@@ -9,7 +11,7 @@
 
 global srcdir
 
-foreach flags [list {} {-static} {-O} {-O2} {-O3}] {
+foreach flags $MUDFLAP_FLAGS {
     foreach srcfile [lsort [glob -nocomplain ${srcdir}/libmudflap.c++/*frag.cxx]] {
 	set bsrc [file tail $srcfile]
 	setenv MUDFLAP_OPTIONS "-viol-segv"
Index: libmudflap/testsuite/libmudflap.cth/cthfrags.exp
===================================================================
--- libmudflap/testsuite/libmudflap.cth/cthfrags.exp	(revision 107157)
+++ libmudflap/testsuite/libmudflap.cth/cthfrags.exp	(working copy)
@@ -1,3 +1,5 @@
+global MUDFLAP_FLAGS
+set MUDFLAP_FLAGS [list {} {-static -DSTATIC} {-O2} {-O3}]
 
 libmudflap-init c
 
@@ -4,7 +6,7 @@
 dg-init
 
 global srcdir
-foreach flags [list {} {-static -DSTATIC} {-O2} {-O3}] {
+foreach flags $MUDFLAP_FLAGS {
     foreach srcfile [lsort [glob -nocomplain ${srcdir}/libmudflap.cth/*.c]] {
 	set bsrc [file tail $srcfile]
 	setenv MUDFLAP_OPTIONS "-viol-segv"