Configure: remove dependency on 'head'.
Reviewed-by: Richard Levitte <levitte@openssl.org>
diff --git a/Configure b/Configure
index eeae03e..413efb0 100755
--- a/Configure
+++ b/Configure
@@ -1101,8 +1101,8 @@
# Is the compiler gcc or clang? $ecc is used below to see if
# error-checking can be turned on.
my $ccpcc = "$config{cross_compile_prefix}$target{cc}";
- $config{makedepprog} = which('makedepend');
- open(PIPE, "$ccpcc --version 2>&1 | head -2 |");
+ open(PIPE, "$ccpcc --version 2>&1 |");
+ my $lines = 2;
while ( <PIPE> ) {
# Find the version number and save the major.
m|(?:.*)\b(\d+)\.\d+\.\d+\b(?:.*)|;
@@ -1110,12 +1110,14 @@
# We know that GNU C version 3 and up as well as all clang
# versions support dependency generation
$config{makedepprog} = $ccpcc
- if /clang/ || (/gcc/ && $compiler_major > 3);
+ if (/clang/ || (/gcc/ && $compiler_major > 3));
$ecc = "clang" if /clang/;
$ecc = "gcc" if /gcc/;
+ last if ($config{makedepprog} || !$lines--);
}
close(PIPE);
+ $config{makedepprog} = which('makedepend') unless $config{makedepprog};
$disabled{makedepend} = "unavailable" unless $config{makedepprog};
}
