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package/openblas: respect the optimization level specified by Buildroot

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openblas internally sets -O2, after the flags being passed by Buildroot
(e.g. -Os).

Patch openblas to let the Buildroot-specified flag survive.

Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas De Schampheleire 2021-03-05 14:48:38 +01:00 committed by Peter Korsgaard
parent a0508b5705
commit b4df526ce3
1 changed files with 40 additions and 0 deletions
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40
package/openblas/0004-Makefile.system-don-t-specify-optimization-level-bui.patch Normal file
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@ -0,0 +1,40 @@
From 6d1c1350977d74fb2239f765bd92a5763cd3bb73 Mon Sep 17 00:00:00 2001
From: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Date: Fri, 5 Mar 2021 14:09:23 +0100
Subject: [PATCH] Makefile.system: don't specify optimization level
[buildroot-specific]
Buildroot will pass an optimization level, but it is ignored because the
openblas makefiles _append_ to the flags passed on the command-line.
The CFLAGS/FFLAGS would e.g. contain '-Os -O2' in which -O2 survives.
Remove the optimization level specified in openblas itself.
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
---
Makefile.system | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Makefile.system b/Makefile.system
index 1e30d05a..04b0be16 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -1216,11 +1216,11 @@ FCOMMON_OPT += -g
endif
ifndef COMMON_OPT
-COMMON_OPT = -O2
+COMMON_OPT =
endif
ifndef FCOMMON_OPT
-FCOMMON_OPT = -O2 -frecursive
+FCOMMON_OPT = -frecursive
endif
override CFLAGS += $(COMMON_OPT) $(CCOMMON_OPT) -I$(TOPDIR)
--
2.26.2