(strcasecmp): New file.

Rev: src/argp/configure.ac:1.16
Rev: src/argp/strcasecmp.c:1.1

src/argp/configure.ac

@@ -38,9 +38,9 @@ LSH_GCC_ATTRIBUTES
 # Checks for library functions.
 AC_FUNC_ALLOCA
 AC_FUNC_VPRINTF
-AC_CHECK_FUNCS(strerror, sleep, getpid)
+AC_CHECK_FUNCS(strerror sleep getpid)
 
-AC_REPLACE_FUNCS(mempcpy strndup strchrnul)
+AC_REPLACE_FUNCS(mempcpy strndup strchrnul strcasecmp)
 
 dnl ARGP_CHECK_FUNC(includes, function-call [, if-found [, if-not-found]])
 AC_DEFUN([ARGP_CHECK_FUNC],

src/argp/strcasecmp.c

+/* strcasecmp.c
+ *
+ */
+
+/* Written by Niels Mller <nisse@lysator.liu.se>
+ *
+ * This file is hereby placed in the public domain.
+ */
+
+#include <ctype.h>
+
+int strcasecmp(const char *s1, const char *s2)
+{
+  unsigned i;
+  
+  for (i = 0; s1[i] && s2[i]; i++)
+    {
+      unsigned char c1 = tolower( (unsigned char) s1[i]);
+      unsigned char c2 = tolower( (unsigned char) s2[i]);
+
+      if (c1 < c2)
+	return -1;
+      else if (c1 > c2)
+	return 1;
+    }
+
+  return !s2[i] - !s1[i];	
+}