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[PATCH] configure: Check bzip2 is available

From: Philippe Mathieu-Daudé
Subject: [PATCH] configure: Check bzip2 is available
Date: Fri, 8 Nov 2019 11:28:05 +0100

The bzip2 tool is not included in default installations.
On freshly installed systems, ./configure succeeds but 'make'
might fail later:

    BUNZIP2 pc-bios/edk2-i386-secure-code.fd.bz2
  /bin/sh: bzip2: command not found
  make: *** [Makefile:305: pc-bios/edk2-i386-secure-code.fd] Error 127
  make: *** Deleting file 'pc-bios/edk2-i386-secure-code.fd'
  make: *** Waiting for unfinished jobs....

Add a check in ./configure to warn the user if bzip2 is missing.

Fixes: 536d2173b2b
Reported-by: Thomas Huth <address@hidden>
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
 configure | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/configure b/configure
index efe165edf9..9957e913e8 100755
--- a/configure
+++ b/configure
@@ -1851,6 +1851,13 @@ python_version=$($python -c 'import sys; 
print("%d.%d.%d" % (sys.version_info[0]
 # Suppress writing compiled files
 python="$python -B"
+# Some firmware binaries are compressed with bzip2
+if has bzip2; then
+  :
+  error_exit "bzip2 program not found. Please install it"
 # Check that the C compiler works. Doing this here before testing
 # the host CPU ensures that we had a valid CC to autodetect the
 # $cpu var (and we should bail right here if that's not the case).

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