libmarkdown2: fix cross-compile

srcpkgs/libmarkdown2/patches/cross-configure_inc.patch

@@ -0,0 +1,11 @@
+--- a/configure.inc
++++ b/configure.inc
+@@ -1770,7 +1770,7 @@
+ }
+ EOF
+ 
+-    if $AC_CC -o config.sed ngc$$.c; then
++    if $BUILD_CC -o config.sed ngc$$.c; then
+ 	rm -f ngc$$.c
+ 	__config_files="$__config_files config.sed"
+     else

srcpkgs/libmarkdown2/patches/cross-makefile_in.patch

@@ -0,0 +1,13 @@
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -95,8 +95,8 @@
+ blocktags: mktags
+ 	./mktags > blocktags
+ 
+-mktags: mktags.o
+-	$(LINK) -o mktags mktags.o
++mktags: mktags.c
++	$(BUILD_CC) -o mktags mktags.c
+ 
+ # example programs
+ @THEME@theme:  theme.o $(COMMON) $(MKDLIB) mkdio.h