Fix missing libgen.h include

Fixes build on macOS. See #6.
philpem · Mar 30, 2021 · a739dac · a739dac
1 parent 7b5963c
commit a739dac
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diff --git a/ptexplain.c b/ptexplain.c
@@ -13,6 +13,7 @@
 #include <ctype.h>
 #include <assert.h>
 #include <getopt.h>
+#include <libgen.h>
 
 #if HAVE_LIBPNG
 # include <png.h>

diff --git a/rastertoptch.c b/rastertoptch.c
@@ -273,6 +273,7 @@
 #include <limits.h>
 #include <stdbool.h>
 #include <getopt.h>
+#include <libgen.h>
 
 static const char* progname;