Extra cygwin-specific changes

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
diff --git a/Makefile b/Makefile
index 2107610..dc98072 100644
--- a/Makefile
+++ b/Makefile
@@ -12,6 +12,26 @@
 #
 -include cgit.conf
 
+# Define NO_STRCASESTR if you don't have strcasestr.
+#
+# Define NEEDS_LIBICONV if linking with libc is not enough (eg. Darwin).
+#
+
+#-include config.mak
+
+#
+# Platform specific tweaks
+#
+
+uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
+uname_O := $(shell sh -c 'uname -o 2>/dev/null || echo not')
+uname_R := $(shell sh -c 'uname -r 2>/dev/null || echo not')
+
+ifeq ($(uname_O),Cygwin)
+	NO_STRCASESTR = YesPlease
+	NEEDS_LIBICONV = YesPlease
+endif
+
 #
 # Define a way to invoke make in subdirs quietly, shamelessly ripped
 # from git.git
@@ -96,6 +116,9 @@
 ifdef NO_ICONV
 	CFLAGS += -DNO_ICONV
 endif
+ifdef NO_STRCASESTR
+	CFLAGS += -DNO_STRCASESTR
+endif
 
 cgit: $(OBJECTS) libgit
 	$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o cgit $(OBJECTS) $(EXTLIBS)