mirror of
https://github.com/cookiengineer/audacity
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38 lines
1.8 KiB
Plaintext
38 lines
1.8 KiB
Plaintext
dnl Add Audacity/WX license?
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dnl Please increment the serial number below whenever you alter this macro
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dnl for the benefit of automatic macro update systems
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# audacity_checklib_widgetextra.m4 serial 1
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dnl A function to check for the correct presence of lib-widget-extra in the
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dnl lib-src tree. Note that this is a mandatory library, and
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dnl that because we maintain it, we don't support system copies.
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dnl You would have thought you could use pkg-config for this. But the
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dnl pkg-config file doesn't exist until configure has been run for
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dnl lib-widget-extra. Using AC_CONFIG_SUBDIRS, that doesn't happen until
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dnl after everything in the main configure script has happened, so
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dnl we can't detect anything about the configured library, because it isn't
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dnl configured when this runs.
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dnl To get round this we have created our own subdirectory configuration
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dnl function, AX_CONFIG_DIR based on a subset of the code that implements
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dnl AC_CONFIG_SUBDIRS.
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AC_DEFUN([AUDACITY_CHECKLIB_WIDGETEXTRA], [
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dnl we always need to configure libwidgetextra, so just call the script
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dnl regardless.
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AX_CONFIG_DIR(["${srcdir}/lib-src/lib-widget-extra"])
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dnl having done that we get a pkg-config file we can use
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dnl add the directory with lib-widget-extra in to the pkg-config search path
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PKG_CONFIG_PATH="${srcdir}/lib-src/lib-widget-extra/:$PKG_CONFIG_PATH"
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export PKG_CONFIG_PATH
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PKG_CHECK_MODULES(WIDGETEXTRA, libwidgetextra,
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widgetextra_available="yes",
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widgetextra_available="no")
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if test "x$widgetextra_available" != "xyes" ; then
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AC_MSG_ERROR([lib-widget-extra is required to build audacity. A copy is included in the audacity source distribution at lib-src/lib-widget-extra/.])
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fi
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dnl otherwise good - got it. Flags will be available for use in
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dnl WIDGETEXTRA_LIBS and friends
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])
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