How do I fix undefined reference to _imp__*?
c, dll, gcc, mingw
Solution
The way to fix my minimal example is to add `--libs` after `--cflags`; gcc couldn't find the library to link against.
I was able to fix the problem that I was running in to with the more complicated code that I was originally trying to compile (gummi (https://gummi.app/)) by passing `LDFLAGS="$(pkg-config --cflags --libs gtkspell-2.0 enchant)" CFLAGS="$(pkg-config --cflags --libs gtkspell-2.0 enchant)"` to the configure script; the problem seems to have been that the arguments to gcc were passed in the wrong order, and it couldn't find enchant when it was trying to link gtkspell.
Problem
I'm trying to compile something that depends on gtkspell, which depends on enchant, under MinGW. I'm getting errors like `gtkspell/gtkspell.c:757: undefined reference to '_imp__enchant_broker_init'` I suspect this is either due to the fact that I'm trying to link againt a {static,dynamic} library when I should be linking against the other one, or because there's only one underscore before the imp and there should be two; I get ``` $ objdump -t /d/opt/enchant-1.6.0/lib/libenchant.a | grep enchant_broker_init [ 85](sec 1)(fl 0x00)(ty 20)(scl 2) (nx 0) 0x00002ac0 _enchant_broker_init ``` and ``` $ objdump -t /d/opt/enchant-1.6.0/lib/libenchant.dll.a | grep enchant_broker_init [ 6](sec 1)(fl 0x00)(ty 0)(scl 2) (nx 0) 0x00000000 _enchant_broker_init [ 7](sec 3)(fl 0x00)(ty 0)(scl 2) (nx 0) 0x00000000 __imp__enchant_broker_init ``` The internet (http://lists.freedesktop.org/archives/gstreamer-devel/2007-January/013975.html) suggests that the imp mangling comes from ``` _declspec(dll{import,export}) ``` though enchant seems to use ``` __declspec(dll{import,export}) ``` , and commenting out the relevant lines in enchant.h makes gtkspell.c request `enchant_broker_init` rather than `_imp__enchant_broker_init`, but doesn't change the symbols that show up in libenchant. Is there a way to make gcc not mangle the names, or does anyone have ideas about what might be going wrong/how to fix it? Here's a minimal example that reproduces the problem on my system: If I have a file enchanttest1.c with contents ``` #include <stdio.h> #include <enchant.h> int main() { #ifdef ENCHANT_MODULE_EXPORT printf("\nEnchant found\n"); #else printf("\nEnchant not found\n"); #endif return 0; } ``` and a file enchanttest2.c with contents ``` #include <stdio.h> #include <enchant.h> int main() { EnchantBroker *b = enchant_broker_init(); #ifdef ENCHANT_MODULE_EXPORT printf("\nEnchant found\n"); #else printf("\nEnchant not found\n"); #endif return 0; } ``` then ``` gcc enchanttest1.c `pkg-config --cflags enchant` && ./a.exe ``` gives `Enchant found` but ``` gcc enchanttest2.c `pkg-config --cflags enchant` && ./a.exe ``` gives ``` C:\Users\JASONG~1\AppData\Local\Temp\ccyDLptc.o:testenchant.c:(.text+0xf): undefined reference to `_imp__enchant_broker_init' collect2: ld returned 1 exit status ```