configure: Drop unnecessary gperf version check
While the check probably made sense when strongSwan 4.x was started, gperf version 3.0.1 was released in 2003, so it's very unlikely that version 2.x is still around anywhere.
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34
configure.ac
34
configure.ac
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@ -379,28 +379,24 @@ AC_PATH_PROG([GPERF], [gperf], [], [$PATH:/bin:/usr/bin:/usr/local/bin])
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AC_ARG_VAR([GPERF], [the GNU gperf program])
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# because gperf is not needed by end-users we only abort if generated files don't exist
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AC_MSG_CHECKING([gperf version >= 3.0.0])
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AC_MSG_CHECKING([gperf len type])
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if test -x "$GPERF"; then
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if test "`$GPERF --version | $AWK -F' ' '/^GNU gperf/ { print $3 }' | $AWK -F. '{ print $1 }'`" -ge "3"; then
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GPERF_OUTPUT="`echo foo | ${GPERF}`"
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AC_COMPILE_IFELSE(
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GPERF_OUTPUT="`echo foo | ${GPERF}`"
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <string.h>
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const char *in_word_set(const char*, size_t); $GPERF_OUTPUT]])],
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[GPERF_LEN_TYPE=size_t],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <string.h>
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const char *in_word_set(const char*, size_t); $GPERF_OUTPUT]])],
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[GPERF_LEN_TYPE=size_t],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <string.h>
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const char *in_word_set(const char*, unsigned); $GPERF_OUTPUT]])],
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[GPERF_LEN_TYPE=unsigned],
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[AC_MSG_ERROR([unable to determine gperf len type])]
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)]
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)
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AC_SUBST(GPERF_LEN_TYPE)
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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fi
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const char *in_word_set(const char*, unsigned); $GPERF_OUTPUT]])],
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[GPERF_LEN_TYPE=unsigned],
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[AC_MSG_ERROR([unable to determine gperf len type])]
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)]
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)
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AC_SUBST(GPERF_LEN_TYPE)
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AC_MSG_RESULT([$GPERF_LEN_TYPE])
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else
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AC_MSG_RESULT([not found])
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GPERF_TEST_FILE="$srcdir/src/libstrongswan/crypto/proposal/proposal_keywords_static.c"
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