Bug 36228 - Problem when compiling without pango support
Summary: Problem when compiling without pango support
Status: RESOLVED FIXED
Alias: None
Product: Class Libraries
Classification: Mono
Component: libgdiplus ()
Version: 3.12.0
Hardware: All Linux
: Lowest trivial
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2015-11-24 19:05 UTC by Sergio Prado
Modified: 2015-12-23 03:46 UTC (History)
4 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description Sergio Prado 2015-11-24 19:05:28 UTC
There is a bug in the configure script that enables pango support when passing --without-pango to the configure script.

Regards,

Sergio Prado
Comment 1 Rodrigo Kumpera 2015-11-27 17:33:16 UTC
Hi Sergio,

Thanks for the report, but you could go in more detail of what is the bug that you're experiencing?
Comment 2 Sergio Prado 2015-11-27 18:50:36 UTC
Hi Rodrigo,

When I try to disable pango support in the configure script:

$ ./configure --without-pango

It still tries to configure with pango support:

...
checking for CAIRO... yes
checking for PANGO... no
configure: error: Package requirements (pango >= 1.10) were not met:

No package 'pango' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables PANGO_CFLAGS
and PANGO_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

There is a bug in the line 29 of configure.ac script that will try to enable pango even when passing --disable-pango.

AC_ARG_WITH(pango, [  --with-pango],[text_v=pango],[text_v=cairo])
Comment 3 Sergio Prado 2015-11-27 18:53:33 UTC
Ops. In the last paragraph, when I said --disable-pango, please read --without-pango.
Comment 4 Rodrigo Kumpera 2015-11-28 15:51:03 UTC
libgdiplus by default doesn't use pango, it uses font rendering from cairo.

If you pass --with-pango (even --with-pango=no) it will probe the system for pango.
Comment 5 Sergio Prado 2015-11-29 10:30:01 UTC
I understand the behavior, but it is not intuitive.

Probing for pango even when passing --without-pango makes no sense, and would confuse the user.
Comment 6 Rodrigo Kumpera 2015-11-29 18:45:34 UTC
Good point, not way to know it without reading configure.ac.

I guess the code would be similar to what's done for libtiff.

It would be if you could try the change and make a PR out of it.
Comment 7 Sergio Prado 2015-11-30 10:20:41 UTC
Thanks Rodrigo.

I'll send a patch to fix it.
Comment 8 Miguel de Icaza [MSFT] 2015-12-23 03:46:59 UTC
Resolving as fixed, the rest can be discussed in a PR.