acinclude.m4
上传用户:quxuerui
上传日期:2018-01-08
资源大小:41811k
文件大小:1k
- # AC_COMPUTE_NEEDED_DSO(LIBRARY, PREPROC_SYMBOL)
- # --------------------------------------------------
- # Compute the 'actual' dynamic-library used
- # for LIBRARY and set it to PREPROC_SYMBOL
- AC_DEFUN([AC_COMPUTE_NEEDED_DSO],
- [
- AC_CACHE_CHECK([Checking for the 'actual' dynamic-library for '-l$1'], ac_cv_libname_$1,
- [
- echo 'int main(int argc, char **argv){return 0;}' > conftest.c
- if test -z "`${CC} ${LDFLAGS} -o conftest conftest.c -l$1 2>&1`"; then
- dnl Try objdump and ldd in that order to get the dynamic library
- if test ! -z "`which objdump | grep -v 'no objdump'`"; then
- ac_cv_libname_$1="`objdump -p conftest | grep NEEDED | grep $1 | sed 's/W*NEEDEDW*(.*)W*$/"1"/'`"
- elif test ! -z "`which ldd | grep -v 'no ldd'`"; then
- ac_cv_libname_$1="`ldd conftest | grep $1 | sed 's/^[[[^A-Za-z0-9]]]*([[[A-Za-z0-9.]]]*)[[[^A-Za-z0-9]]]*=>.*$/"1"/'`"
- else
- AC_MSG_ERROR(Can't find either 'objdump' or 'ldd' to compute the dynamic library for '-l$1')
- fi
- else
- ac_cv_libname_$1=libnotfound.so
- fi
- rm -f conftest*
- ]
- )
- AC_DEFINE_UNQUOTED($2, ${ac_cv_libname_$1}, [The 'actual' dynamic-library for '-l$1'])
- ])# AC_COMPUTE_NEEDED_DSO