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Diffstat (limited to 'gl/m4/asm-underscore.m4')
-rw-r--r-- | gl/m4/asm-underscore.m4 | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/gl/m4/asm-underscore.m4 b/gl/m4/asm-underscore.m4 deleted file mode 100644 index 1736cc43..00000000 --- a/gl/m4/asm-underscore.m4 +++ /dev/null @@ -1,48 +0,0 @@ -# asm-underscore.m4 serial 1 -dnl Copyright (C) 2010 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 Bruno Haible. Based on as-underscore.m4 in GNU clisp. - -# gl_ASM_SYMBOL_PREFIX -# Tests for the prefix of C symbols at the assembly language level and the -# linker level. This prefix is either an underscore or empty. Defines the -# C macro USER_LABEL_PREFIX to this prefix, and sets ASM_SYMBOL_PREFIX to -# a stringified variant of this prefix. - -AC_DEFUN([gl_ASM_SYMBOL_PREFIX], -[ - dnl We don't use GCC's __USER_LABEL_PREFIX__ here, because - dnl 1. It works only for GCC. - dnl 2. It is incorrectly defined on some platforms, in some GCC versions. - AC_CACHE_CHECK( - [whether C symbols are prefixed with underscore at the linker level], - [gl_cv_prog_as_underscore], - [cat > conftest.c <<EOF -#ifdef __cplusplus -extern "C" int foo (void); -#endif -int foo(void) { return 0; } -EOF - # Look for the assembly language name in the .s file. - AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c) >/dev/null 2>&1 - if grep _foo conftest.s >/dev/null ; then - gl_cv_prog_as_underscore=yes - else - gl_cv_prog_as_underscore=no - fi - rm -f conftest* - ]) - if test $gl_cv_prog_as_underscore = yes; then - USER_LABEL_PREFIX=_ - else - USER_LABEL_PREFIX= - fi - AC_DEFINE_UNQUOTED([USER_LABEL_PREFIX], [$USER_LABEL_PREFIX], - [Define to the prefix of C symbols at the assembler and linker level, - either an underscore or empty.]) - ASM_SYMBOL_PREFIX='"'${USER_LABEL_PREFIX}'"' - AC_SUBST([ASM_SYMBOL_PREFIX]) -]) |