Hi, At Gentoo, we've got a bug [1] about lilypond-2.14.2 configure's process.
To summary the bug report: Line 978 of aclocal.m4, a sed rule is applied to remove "junk" in python-cflags output, according to python issue 3290 [2]. It turns out that this sed expression is not correct, and strips parts of some cflags. The remaining part is no longer a valid CFLAGS, making the configure fails, saying it can't find Python.h. The sed rule's purpose is to remove unnecessary CFLAGS like -march, warning flags, optimization flags or definition flags. The sed rule matches strings that start with -[WDOm]. We observed that if some flags contains the above described pattern, the matching part will be removed, event if it is part of another flag. For instance: -floop-strip-mime or -fvector-cost-model. -mime and -model will match the sed rule, and will get removed. Thus -floop-strip and -fvector-cost are passed to the C compiler which does not know about those flags. It then exit on failure, making the configure check failing. We propose a corrected sed rule [3] to match only -[WDOm] at the beginning of a string element, in order to not match substrings. 1. https://bugs.gentoo.org/show_bug.cgi?id=415793 2. http://bugs.python.org/issue3290 3, https://415793.bugs.gentoo.org/attachment.cgi?id=316865 Ī¤hanks, -- Cyprien _______________________________________________ bug-lilypond mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-lilypond
