'linker' input unused ; expected exactly one compiler job

[digikar99]

warning: /tmp/tmpZX2WN8N4.tmp: 'linker' input unused
error: unable to handle compilation, expected exactly one compiler job in '/tmp/tmpZX2WN8N4.tmp'

I'm not exactly sure at which point this issue began; I basically had to update C2FFI to be able to work with stdint.h; post that, I'm running into this issue.

A solution seems to be to rename the ".tmp" extension to ".h" - one way to do that is to supply :type "h" option to UIOP:CALL-WITH-TEMPORARY-FILE in AUTOWRAP::WITH-TEMPORARY-FILE.

Here's the backtrace:

Subprocess #<UIOP/LAUNCH-PROGRAM::PROCESS-INFO {102C45FB83}>
 with command ("c2ffi" "/tmp/tmpZX2WN8N4.tmp" "-o"
               "/home/shubhamkar/quicklisp/local-projects/cl-bmas/specs/bmas.x86_64-pc-linux-gnu.spec"
               "-A" "x86_64-pc-linux-gnu")
 exited with error code 1
   [Condition of type UIOP/RUN-PROGRAM:SUBPROCESS-ERROR]

Restarts:
 0: [CONTINUE] IGNORE-ERROR-STATUS
 1: [RETRY] Retry SLIME interactive evaluation request.
 2: [*ABORT] Return to SLIME's top level.
 3: [ABORT] abort thread (#<THREAD "worker" RUNNING {102C44C6F3}>)

Backtrace:
  0: (UIOP/RUN-PROGRAM::%CHECK-RESULT 1 :COMMAND ("c2ffi" "/tmp/tmpZX2WN8N4.tmp" "-o" "/home/shubhamkar/quicklisp/local-projects/cl-bmas/specs/bmas.x86_64-pc-linux-gnu.spec" "-A" "x86_64-pc-linux-gnu") :PR..
  1: (UIOP/RUN-PROGRAM::%USE-LAUNCH-PROGRAM ("c2ffi" "/tmp/tmpZX2WN8N4.tmp" "-o" "/home/shubhamkar/quicklisp/local-projects/cl-bmas/specs/bmas.x86_64-pc-linux-gnu.spec" "-A" "x86_64-pc-linux-gnu") :OUTPUT ..
  2: (AUTOWRAP::RUN-CHECK "c2ffi" ("/tmp/tmpZX2WN8N4.tmp" "-o" "/home/shubhamkar/quicklisp/local-projects/cl-bmas/specs/bmas.x86_64-pc-linux-gnu.spec" "-A" "x86_64-pc-linux-gnu") :OUTPUT #<COMMON-LISP:SYNO..
      Locals:
        ARGS = ("/tmp/tmpZX2WN8N4.tmp" "-o" "/home/shubhamkar/quicklisp/local-projects/cl-bmas/specs/bmas.x86_64-pc-linux-gnu.spec" "-A" "x86_64-pc-linux-gnu")
        IGNORE-ERROR-STATUS = COMMON-LISP:NIL
        OUTPUT = #<COMMON-LISP:SYNONYM-STREAM :SYMBOL SWANK::*CURRENT-STANDARD-OUTPUT* {1013AB8713}>
        PROGRAM = "c2ffi"
  3: (UIOP/STREAM:CALL-WITH-TEMPORARY-FILE #<FUNCTION (COMMON-LISP:LAMBDA (AUTOWRAP::TMP-INCLUDE-FILE-STREAM AUTOWRAP::TMP-INCLUDE-FILE) :IN AUTOWRAP::RUN-C2FFI) {102C45EC4B}> :WANT-STREAM-P COMMON-LISP:T ..
  4: (UIOP/STREAM:CALL-WITH-TEMPORARY-FILE #<FUNCTION (COMMON-LISP:LAMBDA (#:STREAM0 AUTOWRAP::TMP-MACRO-FILE) :IN AUTOWRAP::RUN-C2FFI) {102C459C5B}> :WANT-STREAM-P COMMON-LISP:T :WANT-PATHNAME-P COMMON-LI..
  5: (AUTOWRAP::ENSURE-LOCAL-SPEC #P"/home/shubhamkar/quicklisp/local-projects/cl-bmas/bmas-bare/bmas.h" :SPEC-PATH #P"/home/shubhamkar/quicklisp/local-projects/cl-bmas/specs/" :ARCH-EXCLUDES COMMON-LISP:N..
      Locals:
        #:.DEFAULTING-TEMP. = #P"/home/shubhamkar/quicklisp/local-projects/cl-bmas/specs/"
        #:.DEFAULTING-TEMP.#1 = COMMON-LISP:NIL
        ARCH-EXCLUDES = COMMON-LISP:NIL
        #:N-SUPPLIED-0 = 1
        NAME = #P"/home/shubhamkar/quicklisp/local-projects/cl-bmas/bmas-bare/bmas.h"
        SPEC-PATH = #P"/home/shubhamkar/quicklisp/local-projects/cl-bmas/specs/"
        SYSINCLUDES = COMMON-LISP:NIL
  6: ((COMMON-LISP:MACRO-FUNCTION AUTOWRAP:C-INCLUDE) (AUTOWRAP:C-INCLUDE (COMMON-LISP:MERGE-PATHNAMES #P"bmas-bare/bmas.h" *SRC-DIR*) :SPEC-PATH (COMMON-LISP:MERGE-PATHNAMES #P"specs/" *SRC-DIR*) :C-TO-LI..
  7: ((COMMON-LISP:FLET SB-IMPL::PERFORM-EXPANSION :IN COMMON-LISP:MACROEXPAND-1) #<FUNCTION (COMMON-LISP:MACRO-FUNCTION AUTOWRAP:C-INCLUDE) {53B4A53B}> COMMON-LISP:NIL)
  8: (COMMON-LISP:MACROEXPAND (AUTOWRAP:C-INCLUDE (COMMON-LISP:MERGE-PATHNAMES #P"bmas-bare/bmas.h" *SRC-DIR*) :SPEC-PATH (COMMON-LISP:MERGE-PATHNAMES #P"specs/" *SRC-DIR*) :C-TO-LISP-FUNCTION (COMMON-LISP..
  9: (SB-INT:SIMPLE-EVAL-IN-LEXENV (AUTOWRAP:C-INCLUDE (COMMON-LISP:MERGE-PATHNAMES #P"bmas-bare/bmas.h" *SRC-DIR*) :SPEC-PATH (COMMON-LISP:MERGE-PATHNAMES #P"specs/" *SRC-DIR*) :C-TO-LISP-FUNCTION (COMMON..
 10: (COMMON-LISP:EVAL (AUTOWRAP:C-INCLUDE (COMMON-LISP:MERGE-PATHNAMES #P"bmas-bare/bmas.h" *SRC-DIR*) :SPEC-PATH (COMMON-LISP:MERGE-PATHNAMES #P"specs/" *SRC-DIR*) :C-TO-LISP-FUNCTION (COMMON-LISP:FUNCTI..
 11: ((COMMON-LISP:LAMBDA COMMON-LISP:NIL :IN SWANK:INTERACTIVE-EVAL))

And some system information:

$ clang++-11 --version
Ubuntu clang version 11.1.0-++20210428103915+1fdec59bffc1-1~exp1~20210428204556.164
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin