| # 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*NEEDED\W*\(.*\)\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 |
