From 5bbf27de9c646c14304cc32895c9e9786f14d9ba Mon Sep 17 00:00:00 2001
From: Evgeny Shulgin <izarizar@mail.ru>
Date: Thu, 15 Dec 2016 21:07:29 +0400
Subject: [PATCH] Fixed linux/build script

Last PR #534
---
 linux/build | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/linux/build b/linux/build
index 0db164d8..5b850195 100755
--- a/linux/build
+++ b/linux/build
@@ -13,4 +13,33 @@ BLD_SOURCES="../src/ccextractor.c $SRC_CCX $SRC_GPAC $SRC_ZLIB $SRC_ZVBI $SRC_LI
 BLD_LINKER="-lm -zmuldefs -l tesseract -l lept -lcurl"
 
 ./pre-build.sh
-gcc $BLD_FLAGS $BLD_INCLUDE -o ccextractor $BLD_SOURCES $BLD_LINKER
+
+out=$((LC_ALL=C gcc $BLD_FLAGS $BLD_INCLUDE -o ccextractor $BLD_SOURCES $BLD_LINKER) 2>&1)
+res=$?
+if [[ $out == *"gcc: command not found"* ]]
+then
+    echo "Error: please install gcc";
+    exit 1
+fi
+if [[ $out == *"curl.h: No such file or directory"* ]]
+then
+    echo "Error: please install curl development library (libcurl4-gnutls-dev for Debian/Ubuntu)";
+    exit 2
+fi
+if [[ $out == *"capi.h: No such file or directory"* ]]
+then
+    echo "Error: please install tesseract development library (tesseract-ocr-dev for Debian/Ubuntu)";
+    exit 3
+fi
+if [[ $out == *"allheaders.h: No such file or directory"* ]]
+then
+    echo "Error: please install leptonica development library (libleptonica-dev for Debian/Ubuntu)";
+    exit 4
+fi
+if [[ $res -ne 0 ]]  # Unknown error
+then
+    echo "Compiled with errors"
+    >&2 echo "$out"
+    exit 5
+fi
+echo "Compiled successful";