check-deps: Changed gelf func in __have_libelf.c

Even though 'libelf-devel' is installed,
'libelf' is displayed as [OFF] rather than [ON]
when running ./configure.

Fixed : namhyung#1869

Signed-off-by: SoJin Jang <[email protected]>

Author: JangSoJin

check-deps/__have_libelf.c

@@ -3,8 +3,14 @@
 
 int main(void)
 {
-	GElf_Ehdr ehdr;
+	Elf *elf;
 
 	elf_version(EV_CURRENT);
+
+	/* check that the gelf function */
+	elf = elf_begin(0, ELF_C_READ, (Elf *)0);
+	gelf_checksum(elf);
+	elf_end(elf);
+
 	return 0;
 }