check for tcgetpgrp() presence before using.

9 years ago · c12d5be929
parent 634babcadb
commit c12d5be929
2 changed files with 2 additions and 2 deletions
--- a/configure.ac
+++ b/configure.ac
@ -235,6 +235,6 @@ XMP_TRY_COMPILE(whether compiler understands -Wunused-result,
  int main(){}],
  CFLAGS="${CFLAGS} -Wno-unused-result")  

-AC_CHECK_FUNCS(kill getopt_long)
+AC_CHECK_FUNCS(kill getopt_long tcgetpgrp)
 AC_CONFIG_FILES([Makefile src/Makefile])
 AC_OUTPUT
--- a/src/main.c
+++ b/src/main.c
@ -83,7 +83,7 @@ static void sigtstp_handler(int n)

 static void sigcont_handler(int sig)
 {
-#ifdef HAVE_TERMIOS_H
+#if defined(HAVE_TERMIOS_H) && defined(HAVE_TCGETPGRP)
 	unsigned int old_in = foreground_in;

 	foreground_in  = tcgetpgrp(STDIN_FILENO)  == getpgrp();