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fix unnecessary revisions.h regeneration and mars.c recompilation

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elrood
2009-01-05 21:11:47 +01:00
parent e7f750aee1
commit a8b99651d9
1 changed files with 10 additions and 5 deletions
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15
revisions.pl.in
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@@ -6,7 +6,6 @@ use File::stat;
use Time::localtime;
my $llvm_src = `perl @LLVM_CONFIG@ --src-root`;
#my $llvm_src = "k:/sources/llvm";
my $llvm_rev = `svnversion $llvm_src`;
@@ -21,9 +20,7 @@ if ($llvm_rev =~ s/(\d+)\s+$/$1/) {
my $ldc_rev = `hg -R@PROJECT_SOURCE_DIR@ tip --template {rev}`;
open my $revh, ">", "revisions.h" or die "cannot create revisions.h";
print $revh qq!#ifndef LDC_VERSIONS_H
my $out = qq!#ifndef LDC_VERSIONS_H
#define LDC_VERSIONS_H
$llvm_rev
@@ -31,4 +28,12 @@ $llvm_rev
#endif // LDC_VERSIONS_H\n!;
close $revh;
my $revh;
my $old = "";
open $revh, "revisions.h" and $old = join "", <$revh>;
if ($old ne $out) {
open $revh, ">revisions.h" or die "cannot create revisions.h: $!";
print $revh $out;
close $revh;
}