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perl: Fix Errno.pm generation for GCC >= 5

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Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This commit is contained in:
Michael Tremer
2017-05-01 17:04:37 +02:00
parent 516911e6b5
commit 26d7f93ed9
2 changed files with 67 additions and 0 deletions
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1
lfs/perl
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@@ -77,6 +77,7 @@ $(subst %,%_MD5,$(objects)) :
$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
@$(PREBUILD)
@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar jxf $(DIR_DL)/$(DL_FILE)
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/perl-Fix-Errno.pm-generation-for-gcc-5.0.patch
ifneq "$(ROOT)" ""
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/$(THISAPP)-libc-2.patch
endif

66
src/patches/perl-Fix-Errno.pm-generation-for-gcc-5.0.patch Normal file
View File

@@ -0,0 +1,66 @@
From 96bcd6ed97ff05f5b421005f23973279dbfcafbf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
Date: Wed, 11 Feb 2015 15:46:37 +0100
Subject: [PATCH 1/2] Fix Errno.pm generation for gcc-5.0
gcc-5.0 -E interleaves now line numbers with expended macros, so that
the generated errno.c will be preprocessed to
EBFONT => [[
59
]]
which is hard to parse in in line-based reader.
So use -P option with gcc >= 5.0. Global -P usage would break makedepend,
global -ftrack-macro-expansion=0 would break lib/h2ph.t.
RT#123784
---
ext/Errno/Errno_pm.PL | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/ext/Errno/Errno_pm.PL b/ext/Errno/Errno_pm.PL
index 3dadfce..c6bfa06 100644
--- a/ext/Errno/Errno_pm.PL
+++ b/ext/Errno/Errno_pm.PL
@@ -215,20 +215,31 @@ sub write_errno_pm {
{ # BeOS (support now removed) did not enter this block
# invoke CPP and read the output
+ my $inhibit_linemarkers = '';
+ if ($Config{gccversion} =~ /\A(\d+)\./ and $1 >= 5) {
+ # GCC 5.0 interleaves expanded macros with line numbers breaking
+ # each line into multiple lines. RT#123784
+ $inhibit_linemarkers = ' -P';
+ }
+
if ($^O eq 'VMS') {
- my $cpp = "$Config{cppstdin} $Config{cppflags} $Config{cppminus}";
+ my $cpp = "$Config{cppstdin} $Config{cppflags}" .
+ $inhibit_linemarkers . " $Config{cppminus}";
$cpp =~ s/sys\$input//i;
open(CPPO,"$cpp errno.c |") or
die "Cannot exec $Config{cppstdin}";
} elsif ($IsMSWin32 || $^O eq 'NetWare') {
- open(CPPO,"$Config{cpprun} $Config{cppflags} errno.c |") or
- die "Cannot run '$Config{cpprun} $Config{cppflags} errno.c'";
+ my $cpp = "$Config{cpprun} $Config{cppflags}" .
+ $inhibit_linemarkers;
+ open(CPPO,"$cpp errno.c |") or
+ die "Cannot run '$cpp errno.c'";
} elsif ($IsSymbian) {
- my $cpp = "gcc -E -I$ENV{SDK}\\epoc32\\include\\libc -";
+ my $cpp = "gcc -E -I$ENV{SDK}\\epoc32\\include\\libc" .
+ $inhibit_linemarkers ." -";
open(CPPO,"$cpp < errno.c |")
or die "Cannot exec $cpp";
} else {
- my $cpp = default_cpp();
+ my $cpp = default_cpp() . $inhibit_linemarkers;
open(CPPO,"$cpp < errno.c |")
or die "Cannot exec $cpp";
}
--
2.3.0