patch from Nick Wellnhofer adding xsl:sort lang support using the locale

* configure.in libxslt/extra.c libxslt/Makefile.am libxslt/preproc.c
  libxslt/xsltInternals.h libxslt/xsltlocale.c libxslt/xsltlocale.h
  libxslt/xsltutils.c win32/Makefile.mingw win32/Makefile.msvc: patch
  from Nick Wellnhofer adding xsl:sort lang support using the locale
  support from the C library.
Daniel

svn path=/trunk/; revision=1476

1 files changed, 43 insertions, 0 deletions

diff --git a/configure.in b/configure.in
index a7edf2b4..7ad6b898 100644
--- a/configure.in
+++ b/configure.in
@@ -3,6 +3,7 @@ AC_PREREQ(2.2)
 AC_INIT(libxslt/xslt.c)
 AM_CONFIG_HEADER(config.h)
 AC_CANONICAL_HOST
+AC_GNU_SOURCE
 
 dnl
 dnl libxslt is the main part of the package
@@ -105,6 +106,48 @@ AC_PATH_PROG(TAR, tar, /bin/tar)
 AC_STDC_HEADERS
 AM_PROG_LIBTOOL
 
+AC_MSG_CHECKING([for working xlocale.h])
+AC_TRY_RUN(
+[
+#include <locale.h>
+#include <xlocale.h>
+#include <string.h>
+#include <stdlib.h>
+
+#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 2
+#define locale_t __locale_t
+#define newlocale __newlocale
+#define freelocale __freelocale
+#define strxfrm_l __strxfrm_l
+#define LC_COLLATE_MASK (1 << LC_COLLATE)
+#endif
+
+int main()
+{
+    locale_t locale;
+    const char *src[2] = { "\xc3\x84rger", "Zeppelin" };
+    char *dst[2];
+    size_t len, r;
+    int i;
+    
+    locale = newlocale(LC_COLLATE_MASK, "en_US.utf8", NULL);
+    if (locale == NULL) exit(1);
+    for (i=0; i<2; ++i) {
+        len = strxfrm_l(NULL, src[i], 0, locale) + 1;
+        dst[i] = malloc(len);
+        if(dst[i] == NULL) exit(1);
+        r = strxfrm_l(dst[i], src[i], len, locale);
+        if(r >= len) exit(1);
+    }
+    if (strcmp(dst[0], dst[1]) >= 0) exit(1);
+    
+    exit(0);
+}
+],
+  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_XLOCALE_H, 1, [Have working xlocale.h])],
+  [AC_MSG_RESULT(no)]
+)
+
 dnl
 dnl Math detection
 dnl