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Diffstat (limited to 'm4/linker-script.m4')
| -rw-r--r-- | m4/linker-script.m4 | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/m4/linker-script.m4 b/m4/linker-script.m4 new file mode 100644 index 0000000..edf0469 --- /dev/null +++ b/m4/linker-script.m4 @@ -0,0 +1,29 @@ +# linker-script.m4 serial 1 +dnl Copyright (C) 2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Simon Josefsson + +# sj_LINKER_SCRIPT() +# ------------- +# Check if ld supports linker scripts, and define automake conditional +# HAVE_LD_VERSION_SCRIPT if so. +AC_DEFUN([sj_LINKER_SCRIPT], +[ + AC_ARG_ENABLE([ld-version-script], + AS_HELP_STRING([--enable-ld-version-script], + [enable/disable linker version script (default is enabled when possible)]), + [have_ld_version_script=$enableval], []) + if test -z "$have_ld_version_script"; then + AC_MSG_CHECKING([if -Wl,--version-script works]) + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,--version-script=$srcdir/lib/libtasn1.vers" + AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), + [have_ld_version_script=yes], [have_ld_version_script=no]) + LDFLAGS="$save_LDFLAGS" + AC_MSG_RESULT($have_ld_version_script) + fi + AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes") +]) |