[oe-commits] [openembedded-core] 13/13: libtool-cross: Handle ccache sstate 'infection' issues

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rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit e7b1aa10f577086675a6478c9d59dc66782cbfe1
Author: Richard Purdie <richard.purdie at linuxfoundation.org>
AuthorDate: Fri Aug 10 10:10:15 2018 +0000

    libtool-cross: Handle ccache sstate 'infection' issues
    
    On a system without ccache, f you:
    
    INHERIT += "ccache"
    bitbake libtool-cross
    <remove INHERIT>
    bitbake apmd
    
    then it fails due to being unable to find ccache. The references to ccache are
    coded into libtool-cross but the sstate checksum doesn't reflect this due to the
    way the class is coded (output should be the same regardless).
    
    The simplest solution is to remove references to ccache from the libtool script.
    The output then works regardless of whether ccache is present or not. The
    libtool-cross script is only used in a handful of cases (most of the time its
    dynamically generated by autoconf) so any performance issue is minor.
    
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/recipes-devtools/libtool/libtool-cross_2.4.6.bb | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/meta/recipes-devtools/libtool/libtool-cross_2.4.6.bb b/meta/recipes-devtools/libtool/libtool-cross_2.4.6.bb
index b268310..522bf3a 100644
--- a/meta/recipes-devtools/libtool/libtool-cross_2.4.6.bb
+++ b/meta/recipes-devtools/libtool/libtool-cross_2.4.6.bb
@@ -13,11 +13,19 @@ do_configure_prepend () {
 	rm -f ${STAGING_DATADIR}/aclocal/lt*.m4
 }
 
+#
+# ccache may or may not be INHERITED, we remove references to it so the sstate
+# artefact works on a machine where its not present. libtool-cross isn't used
+# heavily so any performance issue is minor.
+# Find references to LTCC="ccache xxx-gcc" and CC="ccache xxx-gcc"
+#
 do_install () {
 	install -d ${D}${bindir_crossscripts}/
 	install -m 0755 ${HOST_SYS}-libtool ${D}${bindir_crossscripts}/${HOST_SYS}-libtool
 	sed -e 's@^\(predep_objects="\).*@\1"@' \
 	    -e 's@^\(postdep_objects="\).*@\1"@' \
+	    -e 's@^CC="ccache. at CC="@' \
+	    -e 's@^LTCC="ccache. at LTCC="@' \
 	    -i ${D}${bindir_crossscripts}/${HOST_SYS}-libtool
 	sed -i '/^archive_cmds=/s/\-nostdlib//g' ${D}${bindir_crossscripts}/${HOST_SYS}-libtool
 	sed -i '/^archive_expsym_cmds=/s/\-nostdlib//g' ${D}${bindir_crossscripts}/${HOST_SYS}-libtool

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