diff options
author | rmanfredi <rmanfredi@2592e710-e01b-42a5-8df0-11608a6cc53d> | 2010-11-27 11:55:39 +0000 |
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committer | rmanfredi <rmanfredi@2592e710-e01b-42a5-8df0-11608a6cc53d> | 2010-11-27 11:55:39 +0000 |
commit | 13158f86e3904284dce3dad36b64f07414459551 (patch) | |
tree | 12cc7b8d1b808c8c3505bb44cf067bd9ab98b1e6 /mcon/U/d_dup2.U | |
parent | 194d1db97053d853d5f81c362c461d71c05ea80e (diff) |
Applied mega patch from Christian Biere to greatly improve feature detection
and make a huge step towards better support for cross-compiling.
git-svn-id: svn://svn.code.sf.net/p/dist/code/trunk/dist@34 2592e710-e01b-42a5-8df0-11608a6cc53d
Diffstat (limited to 'mcon/U/d_dup2.U')
-rw-r--r-- | mcon/U/d_dup2.U | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/mcon/U/d_dup2.U b/mcon/U/d_dup2.U index 070bfaa..19e1969 100644 --- a/mcon/U/d_dup2.U +++ b/mcon/U/d_dup2.U @@ -12,7 +12,7 @@ ?RCS: Revision 3.0 1993/08/18 12:05:56 ram ?RCS: Baseline for dist 3.0 netwide release. ?RCS: -?MAKE:d_dup2: Inlibc +?MAKE:d_dup2: Trylink cat i_unistd ?MAKE: -pick add $@ %< ?S:d_dup2: ?S: This variable conditionally defines HAS_DUP2 if dup2() is @@ -26,6 +26,18 @@ ?H:. ?LINT:set d_dup2 : see if dup2 exists -set dup2 d_dup2 -eval $inlibc +$cat >try.c <<EOC +#$i_unistd I_UNISTD +#ifdef I_UNISTD +#include <unistd.h> +#endif +int main(void) +{ + static int fd1, fd2, ret; + ret |= dup2(fd1, fd2); + return ret ? 0 : 1; +} +EOC +set d_dup2 +eval $trylink |