allow editors to find libfmt declarations

Author: mazunki

deps/libfmt/default.nix

@@ -5,25 +5,31 @@
   stdenv ? pkgs.stdenv,
   cmake ? pkgs.cmake
 }:
-stdenv.mkDerivation rec {
-  pname = "fmt";
-  version = "12.0.0";
+let
+  libfmt = stdenv.mkDerivation rec {
+    pname = "fmt";
+    version = "12.0.0";
 
-  src = pkgs.fetchFromGitHub {
-    owner = "fmtlib";
-    repo  = "fmt";
-    rev   = "12.0.0";
-    hash = "sha256-AZDmIeU1HbadC+K0TIAGogvVnxt0oE9U6ocpawIgl6g=";
-  };
+    src = pkgs.fetchFromGitHub {
+      owner = "fmtlib";
+      repo  = "fmt";
+      rev   = "12.0.0";
+      hash = "sha256-AZDmIeU1HbadC+K0TIAGogvVnxt0oE9U6ocpawIgl6g=";
+    };
 
-  nativeBuildInputs = [ cmake ];
+    nativeBuildInputs = [ cmake ];
 
-  cmakeFlags = [
-    "-DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY"
-    "-DBUILD_SHARED_LIBS=OFF"
+    cmakeFlags = [
+      "-DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY"
+      "-DBUILD_SHARED_LIBS=OFF"
 
-    "-DFMT_TEST=OFF"
-    "-DFMT_DOC=OFF"
-    "-DFMT_INSTALL=ON"
-  ];
-}
+      "-DFMT_TEST=OFF"
+      "-DFMT_DOC=OFF"
+      "-DFMT_INSTALL=ON"
+    ];
+  };
+in
+  libfmt // {
+    include = "${libfmt}/include";
+    lib = "${libfmt}/lib";
+  }

develop.nix

@@ -83,11 +83,13 @@ includeos.pkgs.mkShell.override { inherit (includeos) stdenv; } rec {
     jq \
       --arg libcxx "${includeos.libraries.libcxx.include}" \
       --arg libc "${includeos.libraries.libc}"             \
-      --arg localsrc "${toString ./.}"                           \
+      --arg libfmt "${includeos.passthru.libfmt.include}"  \
+      --arg localsrc "${toString ./.}"                     \
       '
       map(.command |= ( .
           + " -isystem \($libcxx)"
           + " -isystem \($libc)/include"
+          + " -I \($libfmt)"
           | gsub("(?<a>-I)(?<b>/lib/LiveUpdate/include)"; .a + $localsrc + .b)
       ))
     ' "$CCDB" > "$tmp" && mv "$tmp" "$CCDB"