This makes it much easier to find a particular thing in config.log.
The information may be lacking in other shells, resulting in harmless
empty output. (This is why we don't use the proper ${FUNCNAME[*]}
array syntax - other shells will choke on that.)
The extra output is only printed if configure is run with bash. On
systems where /bin/sh is not bash, it is necessary to say bash
./configure to get the extra debug info in the log.
Signed-off-by: Ian Jackson <ian.jack...@eu.citrix.com>
CC: Kent R. Spillner <kspill...@acm.org>
CC: Janosch Frank <fran...@linux.vnet.ibm.com>
CC: Thomas Huth <th...@redhat.com>
CC: Peter Maydell <peter.mayd...@linaro.org>
CC: Paolo Bonzini <pbonz...@redhat.com>
---
v6: Fix commit message wording.
v4: No longer tag this patch RFC.
---
configure | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/configure b/configure
index 0a8059f..841c146 100755
--- a/configure
+++ b/configure
@@ -60,6 +60,10 @@ do_compiler() {
# is compiler binary to execute.
local compiler="$1"
shift
+ echo >>config.log "
+funcs: ${FUNCNAME}
+lines: ${BASH_LINENO}
+files: ${BASH_SOURCE}"
echo $compiler "$@" >> config.log
$compiler "$@" >> config.log 2>&1 || return $?
# Test passed. If this is an --enable-werror build, rerun
--
2.1.4
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