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This commit is contained in:
domenico
193
tools/gnulib/patches/150-portable-tdestroy.patch
Normal file
193
tools/gnulib/patches/150-portable-tdestroy.patch
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@@ -0,0 +1,193 @@
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--- a/lib/search.in.h
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+++ b/lib/search.in.h
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@@ -112,6 +112,11 @@ _GL_CXXALIASWARN (lsearch);
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# define twalk rpl_twalk
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# endif
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# endif
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+# if @REPLACE_TDESTROY@
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+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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+# define tdestroy rpl_tdestroy
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+# endif
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+# endif
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/* See <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/search.h.html>
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<https://pubs.opengroup.org/onlinepubs/9699919799/functions/tsearch.html>
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@@ -137,6 +142,7 @@ extern "C" {
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# if !GNULIB_defined_search_fn_types
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typedef int (*_gl_search_compar_fn) (const void *, const void *);
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typedef void (*_gl_search_action_fn) (const void *, VISIT, int);
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+typedef void (*_gl_search_free_fn) (void *);
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# define GNULIB_defined_search_fn_types 1
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# endif
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# ifdef __cplusplus
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@@ -252,9 +258,36 @@ _GL_CXXALIAS_SYS (twalk, void,
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_GL_CXXALIASWARN (twalk);
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# endif
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+/* Removes the whole tree pointed to by root,
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+ freeing all resources allocated by the tsearch() function.
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+ The FREE_NODE function is called:
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+ - For the data in each tree node.
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+ - Even when no such work is necessary, to a function doing nothing
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+ The arguments passed to FREE_NODE are:
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+ 1. The pointer to the data. */
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+# if @REPLACE_TDESTROY@
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+_GL_FUNCDECL_RPL (tdestroy, void,
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+ (void *vroot, _gl_search_free_fn freefct)
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+ _GL_ARG_NONNULL ((2)));
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+_GL_CXXALIAS_RPL (tdestroy, void,
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+ (void *vroot, _gl_search_free_fn freefct));
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+# else
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+# if !@HAVE_TDESTROY@
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+_GL_FUNCDECL_SYS (tdestroy, void,
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+ (void *vroot, _gl_search_free_fn freefct)
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+ _GL_ARG_NONNULL ((2)));
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+# endif
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+_GL_CXXALIAS_SYS (tdestroy, void,
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+ (void *vroot, _gl_search_free_fn freefct));
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+# endif
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+# if __GLIBC__ >= 2
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+_GL_CXXALIASWARN (tdestroy);
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+# endif
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+
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/* Flags used by tsearch.c. */
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# define GNULIB_defined_tsearch (@REPLACE_TSEARCH@ || !@HAVE_TSEARCH@)
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# define GNULIB_defined_twalk (@REPLACE_TWALK@ || !@HAVE_TWALK@)
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+# define GNULIB_defined_tdestroy (@REPLACE_TDESTROY@ || !@HAVE_TDESTROY@)
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#elif defined GNULIB_POSIXCHECK
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# undef tsearch
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@@ -277,6 +310,11 @@ _GL_WARN_ON_USE (tdelete, "tdelete is un
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_GL_WARN_ON_USE (twalk, "twalk is unportable - "
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"use gnulib module tsearch for portability");
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# endif
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+# undef tdestroy
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+# if HAVE_RAW_DECL_TDESTROY
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+_GL_WARN_ON_USE (tdestroy, "tdestroy is unportable - "
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+ "use gnulib module tsearch for portability");
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+# endif
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#endif
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--- a/lib/tsearch.c
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+++ b/lib/tsearch.c
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@@ -98,12 +98,14 @@
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typedef int (*__compar_fn_t) (const void *, const void *);
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typedef void (*__action_fn_t) (const void *, VISIT, int);
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+typedef void (*__free_fn_t) (void *);
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#ifndef weak_alias
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# define __tsearch tsearch
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# define __tfind tfind
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# define __tdelete tdelete
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# define __twalk twalk
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+# define __tdestroy tdestroy
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#endif
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#ifndef internal_function
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@@ -656,7 +658,7 @@ weak_alias (__twalk, twalk)
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#endif /* GNULIB_defined_twalk */
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-#ifdef _LIBC
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+#if defined(_LIBC) || GNULIB_defined_tdestroy
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/* The standardized functions miss an important functionality: the
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tree cannot be removed easily. We provide a function to do this. */
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@@ -683,6 +685,8 @@ __tdestroy (void *vroot, __free_fn_t fre
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if (root != NULL)
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tdestroy_recurse (root, freefct);
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}
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+#ifdef weak_alias
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weak_alias (__tdestroy, tdestroy)
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+#endif
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-#endif /* _LIBC */
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+#endif /* defined(_LIBC) || GNULIB_defined_tdestroy */
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--- a/m4/search_h.m4
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+++ b/m4/search_h.m4
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@@ -39,7 +39,7 @@ AC_DEFUN_ONCE([gl_SEARCH_H],
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use.
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gl_WARN_ON_USE_PREPARE([[#include <search.h>
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- ]], [tdelete tfind tsearch twalk])
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+ ]], [tdelete tfind tsearch twalk tdestroy])
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AC_REQUIRE([AC_C_RESTRICT])
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])
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@@ -75,8 +75,10 @@ AC_DEFUN([gl_SEARCH_H_DEFAULTS],
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_LFIND], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_LSEARCH], [1])
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dnl Assume proper GNU behavior unless another module says otherwise.
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- HAVE_TSEARCH=1; AC_SUBST([HAVE_TSEARCH])
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- HAVE_TWALK=1; AC_SUBST([HAVE_TWALK])
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- REPLACE_TSEARCH=0; AC_SUBST([REPLACE_TSEARCH])
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- REPLACE_TWALK=0; AC_SUBST([REPLACE_TWALK])
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+ HAVE_TSEARCH=1; AC_SUBST([HAVE_TSEARCH])
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+ HAVE_TWALK=1; AC_SUBST([HAVE_TWALK])
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+ HAVE_TDESTROY=1; AC_SUBST([HAVE_TDESTROY])
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+ REPLACE_TSEARCH=0; AC_SUBST([REPLACE_TSEARCH])
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+ REPLACE_TWALK=0; AC_SUBST([REPLACE_TWALK])
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+ REPLACE_TDESTROY=0; AC_SUBST([REPLACE_TDESTROY])
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])
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--- a/m4/tsearch.m4
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+++ b/m4/tsearch.m4
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@@ -9,6 +9,7 @@ AC_DEFUN([gl_FUNC_TSEARCH],
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AC_REQUIRE([gl_SEARCH_H_DEFAULTS])
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gl_CHECK_FUNCS_ANDROID([tsearch], [[#include <search.h>]])
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gl_CHECK_FUNCS_ANDROID([twalk], [[#include <search.h>]])
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+ gl_CHECK_FUNCS_ANDROID([tdestroy], [[#include <search.h>]])
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if test $ac_cv_func_tsearch = yes; then
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dnl On OpenBSD 4.0, the return value of tdelete() is incorrect.
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AC_REQUIRE([AC_PROG_CC])
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@@ -50,6 +51,7 @@ main ()
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*no)
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REPLACE_TSEARCH=1
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REPLACE_TWALK=1
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+ REPLACE_TDESTROY=1
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;;
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esac
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else
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@@ -64,6 +66,12 @@ main ()
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future*) REPLACE_TWALK=1 ;;
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esac
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fi
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+ if test $ac_cv_func_tdestroy != yes; then
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+ HAVE_TDESTROY=0
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+ case "$gl_cv_onwards_func_tdestroy" in
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+ future*) REPLACE_TDESTROY=1 ;;
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+ esac
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+ fi
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])
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# Prerequisites of lib/tsearch.c.
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--- a/modules/search
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+++ b/modules/search
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@@ -37,8 +37,10 @@ search.h: search.in.h $(top_builddir)/co
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-e 's/@''GNULIB_MDA_LSEARCH''@/$(GNULIB_MDA_LSEARCH)/g' \
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-e 's|@''HAVE_TSEARCH''@|$(HAVE_TSEARCH)|g' \
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-e 's|@''HAVE_TWALK''@|$(HAVE_TWALK)|g' \
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+ -e 's|@''HAVE_TDESTROY''@|$(HAVE_TDESTROY)|g' \
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-e 's|@''REPLACE_TSEARCH''@|$(REPLACE_TSEARCH)|g' \
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-e 's|@''REPLACE_TWALK''@|$(REPLACE_TWALK)|g' \
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+ -e 's|@''REPLACE_TDESTROY''@|$(REPLACE_TDESTROY)|g' \
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-e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
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-e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
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-e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \
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--- a/modules/tsearch
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+++ b/modules/tsearch
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@@ -11,7 +11,12 @@ search
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configure.ac:
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gl_FUNC_TSEARCH
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gl_CONDITIONAL([GL_COND_OBJ_TSEARCH],
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- [test $HAVE_TSEARCH = 0 || test $HAVE_TWALK = 0 || test $REPLACE_TSEARCH = 1 || test $REPLACE_TWALK = 1])
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+ [test $HAVE_TSEARCH = 0 ||
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+ test $HAVE_TWALK = 0 ||
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+ test $HAVE_TDESTROY = 0 ||
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+ test $REPLACE_TSEARCH = 1 ||
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+ test $REPLACE_TWALK = 1 ||
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+ test $REPLACE_TDESTROY = 1])
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AM_COND_IF([GL_COND_OBJ_TSEARCH], [
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gl_PREREQ_TSEARCH
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])
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