patches/dmalloc/5.5.2/160-strdup_macro.patch
author Oron Peled <oron@actcom.co.il>
Mon Aug 03 00:49:25 2009 +0200 (2009-08-03)
changeset 1449 8ad2773e7ae3
parent 569 147a29d2e81f
permissions -rw-r--r--
[complib:mpfr] Fix building MPFR in some weird cases

The tmul test uses a compiled-in input file in $(srcdir).
The problem is that the Makefile passes it unquoted. The C code
tries to stringify it using clever macros, which may *usually* work.

In my case the source directory was named:
.../toolchain-powerpc-e500v2-linux-gnuspe-1.0-2.fc10/.../tests
And guess what? During testing I found out the program fails because
it tries to open:
.../toolchain-powerpc-e500v2-1-gnuspe-1.0-2.fc10/.../tests

Yes, CPP tokenized the macro before stringifying it and not surprisingly
the 'linux' part was converted to 1.
[on Fedora-10: cpp (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)]

So the attached patch simplify the macros and pass the path as string
from the Makefile.
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--- dmalloc-5.5.2.orig/configure	2008-06-17 13:10:09.000000000 +0200
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+++ dmalloc-5.5.2/configure	2008-06-17 13:11:25.000000000 +0200
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@@ -4691,8 +4691,35 @@
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 echo "$as_me:$LINENO: checking strdup macro" >&5
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 echo $ECHO_N "checking strdup macro... $ECHO_C" >&6
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 if test "$cross_compiling" = yes; then
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-  ac_cv_strdup_macro=no
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+  cat >conftest.$ac_ext <<_ACEOF
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+/* confdefs.h */
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+_ACEOF
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+cat confdefs.h >>conftest.$ac_ext
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+cat >>conftest.$ac_ext <<_ACEOF
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+/* end confdefs.h.  */
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+
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+#if HAVE_STDLIB_H
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+#  include <string.h>
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+#endif
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+
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+#ifndef strdup
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+       choke me
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+#endif
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+main() { exit(0); }
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+
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+_ACEOF
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+rm -f conftest.o conftest.obj
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+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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+  (eval $ac_compile) 2>&5
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+  ac_status=$?
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+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
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+  (exit $ac_status); }; then
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+  ac_cv_strdup_macro=yes
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+else
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+  ac_cv_strdup_macro=no
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+fi
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+  
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 else
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   cat >conftest.$ac_ext <<_ACEOF
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 /* confdefs.h.  */