CODEWITHSUNDEEP
linuxcompilationlinkerfreetype2
mivi
mivi

Reputation: 348

Undefined reference with FreeType 2

I am getting undefined reference error while building a simple example with FreeType 2.

gcc `/usr/bin/freetype-config --cflags`  `/usr/bin/freetype-config --libs` a.c 
/tmp/ccuSpdkr.o: In function `main':
a.c:(.text+0x10): undefined reference to `FT_Init_FreeType'
collect2: error: ld returned 1 exit status

I am on Ubuntu 12.10 x64. Package libfreetype6 & libfreetype6-dev are installed.

File a.c is:

#include <stdio.h>
#include <ft2build.h> 
#include FT_FREETYPE_H

int main() {
  FT_Library library;
  FT_Init_FreeType( &library );
  return 0;
}

I tried 2 step compilation, to make sure everything is on 64 bit:

> gcc -c `/usr/bin/freetype-config --cflags` a.c
> file a.o
a.o: ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV), not stripped
> /usr/bin/freetype-config --cflags
-I/usr/include/freetype2
> /usr/bin/freetype-config --libs
-L/usr/lib/x86_64-linux-gnu -lfreetype -lz
> file /usr/lib/x86_64-linux-gnu/libfreetype.so.6.9.0
/usr/lib/x86_64-linux-gnu/libfreetype.so.6.9.0: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=0x8ed223c2650372fc88b41fd348a72f03329adefa, stripped

What am I missing?

Upvotes: 3

Views: 3399

Answers (1)

user529758
user529758

Reputation:

You should put the linker flags after the object and/or source files; instead of

gcc `freetype-config --libs` a.c

write

gcc a.c `freetype-config --libs`

Upvotes: 4

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