configure.ac: Specify default language as C++
This is useful if we add more AC_CHECK_HEADER or similar configure tests including C++ header files or required C++ features, since otherwise gcc is used by default and test fail. Change-Id: Iee757c78b72290c5d2a4c31339800a4e72b6be23
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@ -49,6 +49,7 @@ AC_PROG_LN_S
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AC_PROG_MAKE_SET
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AC_PROG_INSTALL
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AC_PATH_PROG([RM_PROG], [rm])
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AC_LANG([C++])
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dnl check for pkg-config (explained in detail in libosmocore/configure.ac)
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AC_PATH_PROG(PKG_CONFIG_INSTALLED, pkg-config, no)
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