From d110fdd03f8860b2a1cd689187f8056b9e22af09 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Mon, 21 Sep 2020 13:28:51 +0200
Subject: [PATCH] Disable precompiled headers in 'nix develop'

They're still enabled in regular builds though.
---
 flake.nix                 | 5 +----
 mk/precompiled-headers.mk | 2 +-
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/flake.nix b/flake.nix
index 1b9eb4c77..0304557e8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -136,7 +136,7 @@
 
           enableParallelBuilding = true;
 
-          makeFlags = "profiledir=$(out)/etc/profile.d";
+          makeFlags = "profiledir=$(out)/etc/profile.d PRECOMPILE_HEADERS=1";
 
           doCheck = true;
 
@@ -334,9 +334,6 @@
             # syntax-check generated dot files, it still requires some
             # fonts.  So provide those.
             FONTCONFIG_FILE = texFunctions.fontsConf;
-
-            # To test building without precompiled headers.
-            makeFlagsArray = [ "PRECOMPILE_HEADERS=0" ];
           };
 
         # System tests.
diff --git a/mk/precompiled-headers.mk b/mk/precompiled-headers.mk
index 500c99e4a..1fdb4b3a4 100644
--- a/mk/precompiled-headers.mk
+++ b/mk/precompiled-headers.mk
@@ -1,4 +1,4 @@
-PRECOMPILE_HEADERS ?= 1
+PRECOMPILE_HEADERS ?= 0
 
 print-var-help += \
   echo "  PRECOMPILE_HEADERS ($(PRECOMPILE_HEADERS)): Whether to use precompiled headers to speed up the build";