[MacPorts] #57294: libkdegames @4.14.3: 'al.h' file not found

[MacPorts]

#57294: libkdegames @4.14.3: 'al.h' file not found
--------------------------+-------------------------
  Reporter:  rlhamil      |      Owner:  NicosPavlov
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.5.4
Resolution:               |   Keywords:  mojave
      Port:  libkdegames  |
--------------------------+-------------------------

Comment (by stanimura):

 I had the same error, but, in my case, it seems to solve on Mojave without
 openal-soft/openal as adding the following in Portfile.
 {{{
 pre-configure {
     configure.cppflags-append
 "-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenAL.framework/Versions/A/Headers"
     configure.cflags-append
 "-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenAL.framework/Versions/A/Headers"
     configure.cxxflags-append
 "-I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenAL.framework/Versions/A/Headers"
 }
 }}}

 The missing al.h is possibly located in
 {{{
 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenAL.framework/Versions/A/Headers/al.h
 }}}
 However, I am not sure if the al.h is right al.h.

-- 
Ticket URL: <https://trac.macports.org/ticket/57294#comment:3>
MacPorts <https://www.macports.org/>
Ports system for macOS