diff options
Diffstat (limited to 'converter/other/pngtopnm.c')
| -rw-r--r-- | converter/other/pngtopnm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/converter/other/pngtopnm.c b/converter/other/pngtopnm.c index a8ea25a7..205df654 100644 --- a/converter/other/pngtopnm.c +++ b/converter/other/pngtopnm.c @@ -32,6 +32,12 @@ #include "shhopt.h" #include "pnm.h" +#if PNG_LIBPNG_VER >= 10500 +#error Your PNG library (<png.h>) is incompatible with this Netpbm source code. +#error You need either an older PNG library (older than 1.5) or +#error newer Netpbm source code (at least 10.55) +#endif + /* A hack until we can remove direct access to png_info from the program */ #if PNG_LIBPNG_VER >= 10400 #define TRANS_ALPHA trans_alpha |