diff options
| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-09 12:10:54 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-09 12:10:54 +0000 |
| commit | cf7ad7e057f675e9c0d638180b59e7d9d869dd41 (patch) | |
| tree | 0c13e89bc4a57b7ec186313bb24af23116c66825 /configure.in | |
| parent | b9d3995310ecb42f3cfd062e8e507d2c886501ee (diff) | |
* configure.in (rb_cv_rshift_sign, rb_cv_binary_elf): get rid of
AC_TRY_RUN.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18456 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 43 |
1 files changed, 12 insertions, 31 deletions
diff --git a/configure.in b/configure.in index 47dadcac36..8904ff89a5 100644 --- a/configure.in +++ b/configure.in @@ -979,18 +979,9 @@ if test x"$target_cpu" = xia64; then fi AC_CACHE_CHECK(whether right shift preserve sign bit, rb_cv_rshift_sign, - [AC_TRY_RUN([ -int -main() -{ - if (-1==(-1>>1)) - return 0; - return 1; -} -], + [AC_COMPILE_IFELSE(AC_LANG_BOOL_COMPILE_TRY([], [(-1==(-1>>1))]), rb_cv_rshift_sign=yes, - rb_cv_rshift_sign=no, - rb_cv_rshift_sign=yes)]) + rb_cv_rshift_sign=no)]) if test "$rb_cv_rshift_sign" = yes; then AC_DEFINE(RSHIFT(x,y), ((x)>>(int)y)) else @@ -1232,26 +1223,16 @@ AC_ARG_WITH(dln-a-out, esac], [with_dln_a_out=no]) AC_CACHE_CHECK(whether ELF binaries are produced, rb_cv_binary_elf, -[AC_TRY_RUN([ -/* Test for whether ELF binaries are produced */ -#include <fcntl.h> -#include <stdlib.h> -main() { - char buffer[4]; - int i=open("conftest",O_RDONLY); - if(i==-1) - exit(1); /* fail */ - if(read(i,&buffer[0],4)<4) - exit(1); /* fail */ - if(buffer[0] != 127 || buffer[1] != 'E' || - buffer[2] != 'L' || buffer[3] != 'F') - exit(1); /* fail */ - exit(0); /* succeed (yes, it's ELF) */ -} -], -rb_cv_binary_elf=yes, -rb_cv_binary_elf=no, -rb_cv_binary_elf=yes)]) +[AC_TRY_LINK([],[], [ +case "`head -1 conftest$EXEEXT | cat -e`" in +dnl ( +'^?ELF'*) + rb_cv_binary_elf=yes;; +dnl ( +*) + rb_cv_binary_elf=no;; +esac], +rb_cv_binary_elf=no)]) if test "$rb_cv_binary_elf" = yes; then AC_DEFINE(USE_ELF) |