Bug 740044 – media-libs/ftgl-2.1.3_rc5 fails to compile: non-constant-expression cannot be narrowed from type 'double' to 'float' in initializer list

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Agostino Sarubbo 2020-09-02 08:21:11 UTC]

https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: media-libs/ftgl-2.1.3_rc5 fails to compile.
Discovered on: amd64 (internal ref: tinderbox)

NOTE:
This machine uses a clang/LLVM toolchain.
If you think that this issue is strictly related to clang/LLVM please block bug 408963. If you think that this issue is strictly related to the LLD linker, please block bug 731004.
This machine uses also GLIBC-2.32. If you think that this issue is strictly related to GLIBC please block bug 736174.

[Comment 1 Agostino Sarubbo 2020-09-02 08:21:14 UTC]

Created attachment 657902 [details]
build.log

build log and emerge --info

[Comment 2 Agostino Sarubbo 2020-09-02 08:21:15 UTC]

Created attachment 657904 [details]
1-autoconf.out

1-autoconf.out

[Comment 3 Denis Pronin 2020-11-26 11:27:35 UTC]

The actual issue is that while configuring sources it strips CXXFLAGS so that they are cleared off from any unwanted flags from the perspective of configuration scripts. I used to be able to compile when passed c++03 as a standard to build with, but now the configuration wipes it out from CXXFLAGS and as the result I see the build fail

[Comment 4 Sam James 2022-07-17 15:47:40 UTC]

commit 2919a7d7469a54cf50ff469f76f71bf7cc4ca20f
Author: Denis Pronin <[e-mail]>
Date:   Sat Mar 12 13:07:26 2022 +0300

    added ftgl-2.1.3_rc5-clang.patch

    patch that fixes building with clang using c++11

    Signed-off-by: Denis Pronin <[e-mail]>
    Closes: https://github.com/gentoo/gentoo/pull/24505
    Signed-off-by: James Le Cuirot <[e-mail]>