From Makefile to PlatformIO

HI there,
How to “translate” this from makefile to PlatfoemIO:
( static library … env.BuildLibrary( file_1.c, file_2.c, file_3.c) )

CSRCS += file_1.c
CSRCS += file_2.c
CSRCS += file_3.c

file_2.c_CCFLAGS += -fno-lto // flag is only for file_2.c

aaah… :slight_smile:
AddBuildMiddleware()