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autotools: make example build optional

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This patch makes example build optional for autotools build system.

In order to keep the former behavior, example build is enabled by default.

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
[Retrieved (and slightly updated to remove CMakeLists.txt) from:
https://git.buildroot.net/buildroot/tree/package/libnfc/0001-build-systems-make-example-build-optional.patch]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
This commit is contained in:
Fabrice Fontaine 2020-06-21 23:28:37 +02:00
parent 53eccd4be4
commit 874d9605aa
2 changed files with 18 additions and 1 deletions
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8
Makefile.am
View file

@ -2,7 +2,13 @@ ACLOCAL_AMFLAGS = -I m4
AM_CFLAGS = $(LIBNFC_CFLAGS) AM_CFLAGS = $(LIBNFC_CFLAGS)
SUBDIRS = libnfc utils examples include contrib cmake test SUBDIRS = libnfc utils
if EXAMPLE_ENABLED
SUBDIRS += examples
endif
SUBDIRS += include contrib cmake test
pkgconfigdir = $(libdir)/pkgconfig pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = libnfc.pc pkgconfig_DATA = libnfc.pc

11
configure.ac
View file

@ -157,6 +157,14 @@ then
fi fi
AM_CONDITIONAL(DOC_ENABLED, [test x"$enable_doc" = xyes]) AM_CONDITIONAL(DOC_ENABLED, [test x"$enable_doc" = xyes])
# Example build (default: yes)
AC_ARG_ENABLE([example],AS_HELP_STRING([--enable-example],[Enable example build.]),[enable_example=$enableval],[enable_example="yes"])
AC_MSG_CHECKING(for example build)
AC_MSG_RESULT($enable_example)
AM_CONDITIONAL(EXAMPLE_ENABLED, [test x"$enable_example" = xyes])
# Dependencies # Dependencies
PKG_CONFIG_REQUIRES="" PKG_CONFIG_REQUIRES=""
@ -175,7 +183,10 @@ if test x$ac_cv_with_cutter = xyes -a x$ac_cv_use_cutter = xno; then
fi fi
AM_CONDITIONAL([WITH_CUTTER], [test "$ac_cv_use_cutter" != "no"]) AM_CONDITIONAL([WITH_CUTTER], [test "$ac_cv_use_cutter" != "no"])
if test x"$enable_example" = "xyes"
then
AC_CHECK_READLINE AC_CHECK_READLINE
fi
# Help us to write great code ;-) # Help us to write great code ;-)
CFLAGS="$CFLAGS -Wall -pedantic -Wextra" CFLAGS="$CFLAGS -Wall -pedantic -Wextra"