[DVDnav-discuss] [PATCH] Fix undefined variable warning in md5.h

[Erik Auerswald]

Hi,

the attached patch fixes a -Wundef warning when compiling the current 
svn version of libdvdread4 (as part of MPlayer) in the obvious way:

$ make
cc -MD -MP -Ilibdvdread4 -D_GNU_SOURCE -Ilibdvdcss -Wundef -Wall 
-Wno-switch -Wno-parentheses -Wpointer-arith -Wredundant-decls 
-Wstrict-prototypes -Wmissing-prototypes -Wdisabled-optimization 
-Wno-pointer-sign -Wdeclaration-after-statement -std=gnu99 
-Werror-implicit-function-declaration -O4 -march=native -mtune=native 
-pipe -ffast-math -fomit-frame-pointer -fno-tree-vectorize 
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE 
-Ilibdvdread4 -I. -Iffmpeg  -D_REENTRANT -I/usr/include/directfb 
-I/usr/include/   -D_REENTRANT    -I/usr/include/freetype2 
-I/usr/include/dirac   -I/usr/include/schroedinger-1.0 
-I/usr/include/orc-0.4   -c -o libdvdread4/dvd_reader.o 
libdvdread4/dvd_reader.c
In file included from libdvdread4/dvd_reader.c:71:0:
libdvdread4/md5.h:26:30: warning: "_LIBC" is not defined [-Wundef]
cc -MD -MP -Ilibdvdread4 -D_GNU_SOURCE -Ilibdvdcss -Wundef -Wall 
-Wno-switch -Wno-parentheses -Wpointer-arith -Wredundant-decls 
-Wstrict-prototypes -Wmissing-prototypes -Wdisabled-optimization 
-Wno-pointer-sign -Wdeclaration-after-statement -std=gnu99 
-Werror-implicit-function-declaration -O4 -march=native -mtune=native 
-pipe -ffast-math -fomit-frame-pointer -fno-tree-vectorize 
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE 
-Ilibdvdread4 -I. -Iffmpeg  -D_REENTRANT -I/usr/include/directfb 
-I/usr/include/   -D_REENTRANT    -I/usr/include/freetype2 
-I/usr/include/dirac   -I/usr/include/schroedinger-1.0 
-I/usr/include/orc-0.4   -c -o libdvdread4/md5.o libdvdread4/md5.c
In file included from libdvdread4/md5.c:28:0:
libdvdread4/md5.h:26:30: warning: "_LIBC" is not defined [-Wundef]

Please consider applying.

Fix one warning every day. ;-)

Thanks,
Erik
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