Adding large file support
site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com I have a C application I am trying to compile under Mac OS X 10.6.4, which includes large file support. The application builds correctly under Linux. Here is the Darwin kernel I am using: ------------------------- $ uname -v Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 ------------------------- My gcc installation is as follows: ------------------------- $ gcc --version i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5664) ------------------------- My Makefile is as follows: ------------------------- CC=gcc CFLAGS=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -O3 -Wformat -Wall -pedantic -std=gnu99 all: myApp rm -rf *~ myApp: myApp.o ${CC} ${CFLAGS} myApp.o -lbz2 -o myApp rm -rf *~ clean: rm -rf *.o myApp ------------------------- The issue is that my application makes calls to "fseeko64" and "fopen64", and it uses the "off64_t" type for offsets. When I attempt to build, I get the following related warnings and errors: ------------------------- $ make myApp gcc -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -O3 -Wformat -Wall -pedantic -std=gnu99 -c -o myApp.o myApp.c myApp.c: In function ‘extractData’: myApp.c:119: warning: implicit declaration of function ‘fseeko64’ myApp.c:119: error: ‘off64_t’ undeclared (first use in this function) myApp.c:119: error: (Each undeclared identifier is reported only once myApp.c:119: error: for each function it appears in.) myApp.c: In function ‘extractMetadata’: myApp.c:305: warning: implicit declaration of function ‘fopen64’ myApp.c:305: warning: assignment makes pointer from integer without a cast ------------------------- My code builds without errors under Linux. What changes can I make to the source code to add large file support when building under Darwin? Thanks for your advice. Regards, Alex _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... This email sent to site_archiver@lists.apple.com
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Alex Reynolds