60 lines
2.4 KiB
Plaintext
60 lines
2.4 KiB
Plaintext
# actest.m4 -*- autoconf -*-
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# Additional Autoconf macros to ease testing.
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# AC_STATE_SAVE(FILE)
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# ------------------
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# Save the environment, except for those variables we are allowed to touch.
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# This is to check no test touches the user name space.
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# FIXME: There are surely better ways. Explore for instance if
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# we can ask help from AC_SUBST. We have the right to touch what
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# is AC_SUBST'ed.
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# - ^ac_
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# Autoconf's shell name space.
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# - prefix and exec_prefix
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# are kept undefined (NONE) until AC_OUTPUT which then sets them to
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# `/usr/local' and `${prefix}' for make.
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# - CONFIG_STATUS and DEFS
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# Set by AC_OUTPUT.
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# - F77_DUMMY_MAIN
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# Set by AC_F77_DUMMY_MAIN.
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# - ALLOCA|NEED_SETGID|KMEM_GROUP
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# AC_FUNCs from acspecific.
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# - AWK|LEX|LEXLIB|LEX_OUTPUT_ROOT|LN_S|M4|RANLIB|SET_MAKE|YACC
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# AC_PROGs from acspecific
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# - _|@|.[*#?].|LINENO|OLDPWD|PIPESTATUS|RANDOM|SECONDS
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# Some variables some shells use and change.
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# `.[*#?].' catches `$#' etc. which are displayed like this:
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# | '!'=18186
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# | '#'=0
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# | '$'=6908
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# - POW_LIB
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# From acfunctions.m4.
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#
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# Some `egrep' choke on such a big regex (e.g., SunOS 4.1.3). In this
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# case just don't pay attention to the env. It would be great
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# to keep the error message but we can't: that would break AT_CHECK.
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m4_defun([AC_STATE_SAVE],
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[(set) 2>&1 |
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egrep -v -e 'm4_join([|],
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[^a[cs]_],
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[^((exec_)?prefix|DEFS|CONFIG_STATUS)=],
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[^(CC|CFLAGS|CPP|GCC|CXX|CXXFLAGS|CXXCPP|GXX|F77|FFLAGS|FLIBS|G77)=],
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[^(LIBS|LIBOBJS|LDFLAGS)=],
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[^INSTALL(_(DATA|PROGRAM|SCRIPT))?=],
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[^(CYGWIN|ISC|MINGW32|MINIX|EMXOS2|XENIX|EXEEXT|OBJEXT)=],
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[^(X_(CFLAGS|(EXTRA_|PRE_)?LIBS)|x_(includes|libraries)|(have|no)_x)=],
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[^(host|build|target)(_(alias|cpu|vendor|os))?=],
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[^(cross_compiling)=],
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[^(interpval|PATH_SEPARATOR)=],
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[^(F77_DUMMY_MAIN|f77_(case|underscore))=],
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[^(ALLOCA|GETLOADAVG_LIBS|KMEM_GROUP|NEED_SETGID|POW_LIB)=],
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[^(AWK|LEX|LEXLIB|LEX_OUTPUT_ROOT|LN_S|M4|RANLIB|SET_MAKE|YACC)=],
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[^(_|@|.[*#?].|LINENO|OLDPWD|PIPESTATUS|RANDOM|SECONDS)=])' 2>/dev/null |
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# There maybe variables spread on several lines, eg IFS, remove the dead
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# lines.
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grep '^m4_defn([m4_re_word])=' >state-env.$1
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test $? = 0 || rm -f state-env.$1
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ls -1 | egrep -v '^(at-|state-|config\.)' | sort >state-ls.$1
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])# AC_STATE_SAVE
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