* To build on OSX (32bit) export CC=/Developer/usr/bin/llvm-gcc export CXX=/Developer/usr/bin/llvm-g++ export CFLAGS="-m32 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5 -O3 -fomit-frame-pointer -momit-leaf-frame-pointer -fno-tree-pre -falign-loops -ffast-math -fvisibility=hidden" export CXXFLAGS=$CFLAGS $ ./configure --enable-shared=no Note that in xcode4 beta builds /Developer would be replaced with /Xcode4. Also note the optimizations may be redundant, but it's good to know they are there. Fast-Math should be yanked if it seems to cause any problems, but so far seems good. * To build on linux x86: export CC=/path/to/gcc export CXX=/path/to/g++ export CFLAGS=-fvisibility=hidden export CXXFLAGS=$CFLAGS export LDFLAGS=-static-libgcc ./configure --enable-shared=no * To build on linux x86_64: export CC=/path/to/gcc export CXX=/path/to/g++ export CFLAGS=-fvisibility=hidden export CXXFLAGS=$CFLAGS export LDFLAGS=-static-libgcc ./configure --with-pic --enable-shared=no alternatively, just put all those variables on the configure line (note that LIBS is expressed in terms of the path to g++, not the CXX variable): ./configure CC=/path/to/c-compiler CXX=/path/to/c++-compiler [LDFLAGS=-static-libgcc] [-m32] [--with-pic] --enable-shared=no publish libjpeg.a into src/lib//release