38 lines
1.9 KiB
Diff
38 lines
1.9 KiB
Diff
diff -up less-678-build/less-678/configure.ac.fsync less-678-build/less-678/configure.ac
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--- less-678-build/less-678/configure.ac.fsync 2025-05-01 22:42:03.000000000 +0200
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+++ less-678-build/less-678/configure.ac 2025-05-22 18:10:23.572796329 +0200
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@@ -210,6 +210,8 @@ AH_TEMPLATE([HAVE_TIME_T],
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[Define HAVE_TIME_T if your system supports the "time_t" type.])
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AH_TEMPLATE([HAVE_STRERROR],
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[Define HAVE_STRERROR if you have the strerror() function.])
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+AH_TEMPLATE([HAVE_FSYNC],
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+ [Define HAVE_FSYNC if fsync() on a tty works.])
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AH_TEMPLATE([HAVE_FILENO],
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[Define HAVE_FILENO if you have the fileno() macro.])
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AH_TEMPLATE([HAVE_ERRNO],
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@@ -259,7 +261,7 @@ AC_MSG_CHECKING(for ANSI function protot
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int f(int a) { return a; }]])],[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_ANSI_PROTOS)],[AC_MSG_RESULT(no)])
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# Checks for library functions.
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-AC_CHECK_FUNCS([fchmod fsync nanosleep poll popen realpath _setjmp sigprocmask sigsetmask snprintf stat strsignal system ttyname usleep])
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+AC_CHECK_FUNCS([fchmod nanosleep poll popen realpath _setjmp sigprocmask sigsetmask snprintf stat strsignal system ttyname usleep])
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AC_CHECK_DECL(sigsetjmp, [AC_DEFINE(HAVE_SIGSETJMP)], [], [#include <setjmp.h>])
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# AC_CHECK_FUNCS may not work for inline functions, so test these separately.
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@@ -302,6 +304,16 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <errno.h>
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#endif]], [[static char *x; x = strerror(0);]])],[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STRERROR)],[AC_MSG_RESULT(no)])
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+AC_MSG_CHECKING(for fsync)
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+AC_TRY_RUN([
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+#include <fcntl.h>
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+#include <unistd.h>
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+int main(void)
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+{
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+ int fd = open("/dev/tty", O_RDWR);
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+ return fsync(fd);
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+}], [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FSYNC)], [AC_MSG_RESULT(no)])
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+
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AC_MSG_CHECKING(for sys_errlist)
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[extern char *sys_errlist[]; static char **x; x = sys_errlist;]])],[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYS_ERRLIST)],[AC_MSG_RESULT(no)])
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