Use AM_PROG_AR to improve portability
Turning on warnings in Automake makes it complain about not using the AM_PROG_AR macro. The AM_PROG_AR macro is required when LIBRARIES or LTLIBRARIES is used. The macro looks for an archiver and wraps it in the ar-lib script which is automatically generated so Git should ignore it. It makes the custom check for 'ar' obsolete so it is removed. The AM_PROG_AR macro was added in Automake 1.11.2 thus the minimum Automake version is increased.
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@ -38,6 +38,7 @@ uptime-*.json
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/Makefile
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/Makefile
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/Makefile.in
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/Makefile.in
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/aclocal.m4
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/aclocal.m4
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/ar-lib
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/autom4te.cache
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/autom4te.cache
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/build-stamp
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/build-stamp
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/compile
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/compile
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@ -171,10 +171,7 @@ AC_ARG_ENABLE(libscrypt,
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AS_HELP_STRING(--disable-libscrypt, [do not attempt to use libscrypt]))
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AS_HELP_STRING(--disable-libscrypt, [do not attempt to use libscrypt]))
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dnl check for the correct "ar" when cross-compiling
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dnl check for the correct "ar" when cross-compiling
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AN_MAKEVAR([AR], [AC_PROG_AR])
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AM_PROG_AR
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AN_PROGRAM([ar], [AC_PROG_AR])
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AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL([AR], [ar], [ar])])
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AC_PROG_AR
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dnl Check whether the above macro has settled for a simply named tool even
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dnl Check whether the above macro has settled for a simply named tool even
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dnl though we're cross compiling. We must do this before running AC_PROG_CC,
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dnl though we're cross compiling. We must do this before running AC_PROG_CC,
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