How to include external header file

[WGT_4383351]

Two Eclipse FX3 projects need some common external header file. The file have been included in to the project by creating a Linked Folder in Eclipse, the header file appear in the project tree, but during build the header can't be found.

I include such line into makefile in the project:

Include += -I"absolute path to the external folder that contains the header"

after

include $(FX3FWROOT)/common/fx3_build_config.mak

But it doesn't work. And even the line

include $(FX3FWROOT)/common/fx3_build_config.mak

is removed, during build the arm-none-eabi-gcc command line still use the same -I as before - the updated makefile doesn't have effect at all.

[Hemanth · Accepted solution]

Hi,

You can directly add the header file into the project folder in your Workspace - change of make file is not needed (they are autogenerated - and will be changed on every build). Other option is to add the header file directory in the following place:

Regards,

Hemanth

[WGT_4383351]

“Other option is to add the header file directory in the following place” this works, but the makefile under the project root is not regenerated to include that path even after build, not sure where does that added folder come from during build.

[Hemanth]

Make file gets updated when new source file (.c) is added. For the first option - you can add the header file in the project folder and do #include "x.h" in the .c file. This should work.

Regards,

Hemanth