Fix Makefile issues with OSX 11.6

2 files changed, 9 insertions, 2 deletions

diff --git a/tools/nitrogfx/Makefile b/tools/nitrogfx/Makefile
index 16b2632d..37d30b2d 100644
--- a/tools/nitrogfx/Makefile
+++ b/tools/nitrogfx/Makefile
@@ -1,8 +1,14 @@
 CC = gcc
 
-CFLAGS = -Wall -Wextra -Werror -Wno-sign-compare -std=c11 -O2 -DPNG_SKIP_SETJMP_CHECK $(shell pkg-config --cflags libpng)
+HAVE_LIBPNG := $(shell $(PKGCONFIG) libpng; echo $?)
 
-LIBS = $(shell pkg-config --libs libpng)
+ifeq ($(HAVE_LIBPNG),1)
+$(error No package 'libpng' found)
+endif
+
+CFLAGS = -Wall -Wextra -Werror -Wno-sign-compare -std=c11 -O2 -DPNG_SKIP_SETJMP_CHECK $(shell $(PKGCONFIG) --cflags libpng)
+
+LIBS = $(shell $(PKGCONFIG) --libs libpng)
 
 SRCS = main.c convert_png.c gfx.c jasc_pal.c lz.c rl.c util.c font.c huff.c json.c cJSON.c
 
diff --git a/tools/nitrogfx/main.c b/tools/nitrogfx/main.c
index b52aa48b..5561e44e 100644
--- a/tools/nitrogfx/main.c
+++ b/tools/nitrogfx/main.c
@@ -362,6 +362,7 @@ void HandlePngToNtrCommand(char *inputPath, char *outputPath, int argc, char **a
     options.bitDepth = 4;
     options.metatileWidth = 1;
     options.metatileHeight = 1;
+    options.wrongSize = false;
     options.clobberSize = false;
     options.byteOrder = true;
     options.version101 = false;