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[2/2] bdwgc: add patch automatically detecting for NO_GETCONTEXT need

Message ID efeb5ff2d78fb77cfd65a2e4e3bbb78ec9bef3f0.1419448003.git.yann.morin.1998@free.fr
State Accepted
Headers show

Commit Message

Yann E. MORIN Dec. 24, 2014, 7:09 p.m. UTC 
From: Samuel Martin <s.martin49@gmail.com>

This patch is necessary to successfully build guile with toolchain
missing support for getcontext.

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
[yann.morin.1998@free.fr: add a comment, change variable name, use
 AS_IF, remove debug traces, use AC_CHECK_FUNCS (Thomas)]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

---
Note: we're not testing setcontext, because it is not used. getcontext
is used only to retrieve the context of the tread (like registers, heap
adress, and so on...), not to actually use contexts.
---
 ...ac-add-check-for-NO_GETCONTEXT-definition.patch | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 package/bdwgc/0001-configure.ac-add-check-for-NO_GETCONTEXT-definition.patch
diff mbox

Patch

diff --git a/package/bdwgc/0001-configure.ac-add-check-for-NO_GETCONTEXT-definition.patch b/package/bdwgc/0001-configure.ac-add-check-for-NO_GETCONTEXT-definition.patch
new file mode 100644
index 0000000..393ad90
--- /dev/null
+++ b/package/bdwgc/0001-configure.ac-add-check-for-NO_GETCONTEXT-definition.patch
@@ -0,0 +1,28 @@ 
+configure.ac: add check for NO_GETCONTEXT definition
+
+Signed-off-by: Samuel Martin <s.martin49@gmail.com>
+[yann.morin.1998@free.fr: add a comment, change variable name, use
+ AS_IF, remove debug traces, use AC_CHECK_FUNCS (as suggested by
+ Thomas)]
+Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
+Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+---
+ configure.ac | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- bdwgc-7.2f.orig/configure.ac	2014-06-01 19:00:47.000000000 +0200
++++ bdwgc-7.2f/configure.ac	2014-12-23 14:13:11.585716713 +0100
+@@ -365,6 +365,12 @@
+   AC_MSG_RESULT($ac_cv_fno_strict_aliasing)
+ fi
+ 
++# Check for getcontext (uClibc can be configured without it, for example)
++AC_CHECK_FUNCS([getcontext])
++AS_IF([test "$ac_cv_func_getcontext" = "no"],
++  [CFLAGS="$CFLAGS -DNO_GETCONTEXT"
++   CPPFLAGS="$CPPFLAGS -DNO_GETCONTEXT"])
++
+ case "$host" in
+ # While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64
+ # and unnecessary everywhere.