Missing pkg-config file for linux

[taozuhong]

1. What version of ODPI-C are you using (see dpi.h)?
   5.6.4

2. What OS (and version) is your application on?
   Windows / MSYS2

3. What compiler (and version) did you use?
   GCC/LLVM

4. What is your version of the Oracle Client (e.g. Instant Client)? How was it installed? Where it is installed?
   Instant Client 23.7

5. What is your Oracle Database version?
   Oracle 23i

6. What is the PATH environment variable (on Windows) or LD_LIBRARY_PATH (on Linux) set to?
   PATH=%PATH%;%ORACLE_HOME%\instantclient_23_7

7. What environment variables did you set? How exactly did you set them?

8. What problem or error(s) you are seeing?
   Missing the pkg-config file(.pc)

prefix=@PREFIX@
bindir=${prefix}/bin
libdir=${prefix}/lib
includedir=${prefix}/include

Name: ODPI
Description: Oracle Database Programming Interface for Drivers and Applications
Version: @VERSION@
Libs: -L${libdir} -lodpic
Cflags: -I${includedir}