+# Clear CDPATH as the 'cd' command will echo stuff
+# to stdout if it is set
+unset CDPATH
+
+# Given a list of files, look for .a archives and unpack them.
+# Return the original list of files minus the .a files plus the unpacked files.
+# first param: name of a temp directory (to be deleted when finished)
+# remaining params: list of .o and .a files
+expand_archives() {
+ DIR=$1
+ shift
+ FILES=$@
+ NEWFILES=""
+ ORIG_DIR=`pwd`
+ mkdir -p "$DIR"
+ cd "$DIR"
+ for FILE in $FILES ; do
+ case $FILE in
+ *.a)
+ # extract the .o files from this .a archive
+ case $FILE in
+ /*) ;;
+ *) FILE="$ORIG_DIR/$FILE" ;;
+ esac
+ MEMBERS=`ar t $FILE`
+ ar x $FILE
+ for MEMBER in $MEMBERS ; do
+ NEWFILES="$NEWFILES $DIR/$MEMBER"
+ done
+ ;;
+ *)
+ # other file type, just add to list
+ NEWFILES="$NEWFILES $FILE"
+ ;;
+ esac
+ done
+ cd "$ORIG_DIR"
+ echo $NEWFILES
+}
+
+
+# Make static library with 'ar'
+# params:
+# options to ar
+# 1 or 0 to indicate if ranlib should be run
+# libname to make
+# list of object files
+# Return name of library we made
+# Example: "make_ar_static_lib -ru 1 libfoo.a foo.o bar.o"
+make_ar_static_lib() {
+ OPTS=$1
+ shift;
+ RANLIB=$1
+ shift;
+ LIBNAME=$1
+ shift;
+ OBJECTS=$@
+
+ # remove existing lib, if present
+ rm -f ${LIBNAME}
+
+ # make static lib
+ ar ${OPTS} ${LIBNAME} ${OBJECTS}
+
+ # run ranlib
+ if [ ${RANLIB} = 1 ] ; then
+ ranlib ${LIBNAME}
+ fi
+
+ echo ${LIBNAME}
+}
+
+
+# Print usage info.
+usage() {
+ echo 'Usage: mklib [options] objects'
+ echo 'Create a shared library from object files.'
+ echo ' -o LIBRARY specifies the name of the resulting library, without'
+ echo ' the leading "lib" or any suffix.'
+ echo ' (eg: "-o GL" might result in "libGL.so" being made)'
+ echo ' -major N specifies major version number (default is 1)'
+ echo ' -minor N specifies minor version number (default is 0)'
+ echo ' -patch N specifies patch version number (default is 0)'
+ echo ' -lLIBRARY specifies a dependency on LIBRARY'
+ echo ' -LDIR search in DIR for library dependencies at build time'
+ echo ' -RDIR search in DIR for library dependencies at run time'
+ echo ' -linker L explicity specify the linker program to use (eg: gcc, g++)'
+ echo ' Not observed on all systems at this time.'
+ echo ' -ldflags OPT specify any additional linker flags in OPT'
+ echo ' -cplusplus link with C++ runtime'
+ echo ' -static make a static library (default is dynamic/shared)'
+ echo ' -dlopen make a shared library suitable for dynamic loading'
+ echo ' -install DIR put resulting library file(s) in DIR'
+ echo ' -arch ARCH override using `uname` to determine host system'
+ echo ' -archopt OPT specify an extra achitecture-specific option OPT'
+ echo ' -altopts OPTS alternate options to override all others'
+ echo " -noprefix don't prefix library name with 'lib' nor add any suffix"
+ echo ' -exports FILE only export the symbols listed in FILE'
+ echo ' -id NAME Sets the id of the dylib (Darwin)'
+ echo ' -h, --help display this information and exit'
+}
+
+