Configure script picks wrong xml2-config

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#548 Configure script picks wrong xml2-config

Milestone: v1.0_(example)

Status: closed-fixed

Owner: Bob Friesenhahn

Labels: Configure (2) build (5) or install (2)

Priority: 2

Updated: 2018-12-02

Created: 2018-02-19

Creator: Baykalov Pyotr

Private: No

v1.3.29, cross-compiling from Cygwin to MinGW
$ ../configure --host=x86_64-w64-mingw32 --enable-shared --with-sysroot=/usr/x86_64-w64-mingw32/sys-root/mingw --prefix=/usr/x86_64-w64-mingw32/sys-root/mingw CXXFLAGS=-O3

I scratched my head for good three hours trying to understand why MinGW compiler was making Cygwin-dependent executables. It turned out that configure script was picking /usr/bin/xml2-config instead of /usr/x86_64-w64-mingw32/sys-root/mingw/bin/xml2-config which made compiler to search main lib directories.

I hammered the path into configure script to work around it but it would be nice to see it work without it.

Discussion

Bob Friesenhahn - 2018-11-22

labels: Configure, build, or install --> Configure, build, or install
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Bob Friesenhahn - 2018-11-22

GraphicsMagick now uses pkg-config to search for libxml2 prior to looking for an xml2-config program. I don't know how this change impacts your build scenario. What happens now for your build?

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Baykalov Pyotr - 2018-11-28

I tried it right now with same configure command (without modifying anything of course) and checked the shared libraries with DependencyWalker - no Cygwin dependency anymore. Thanks for your labour!

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Baykalov Pyotr - 2018-11-28

However, I have this in config.log:

configure:27615: checking for xml2-config configure:27633: found /usr/bin/xml2-config configure:27645: result: /usr/bin/xml2-config

Nonetheless, the libraries are not dependent on Cygwin anymore and I don't see ac_cv_path_xml2_config used anywhere.

Last edit: Baykalov Pyotr 2018-11-28
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- Bob Friesenhahn - 2018-11-28
  
  On Wed, 28 Nov 2018, Baykalov Pyotr wrote:
  
  However, I have this in config.log:
  ~~~
  configure:27615: checking for xml2-config
  configure:27633: found /usr/bin/xml2-config
  configure:27645: result: /usr/bin/xml2-config
  ~~~
  Nonetheless, the libraries are not dependent on Cygwin though.
  
  This is expected behavior. If pkg-config is not available or does not
  know about the package, then it will still use the xml2-config script.
  It tests for the path to the xml2-config in advance in order to avoid
  possibly executing a non-existent command if pkg-config fails and as a
  form of documentation.
  
  Bob
  
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Bob Friesenhahn - 2018-12-02

status: open --> closed-fixed

assigned_to: Bob Friesenhahn
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Bob Friesenhahn - 2018-12-02

User reports success (apparently due to using pkg-config) with implementation now included in GM 1.3.31.

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